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Kurosawa Tohru

Faculty of Engineering　Applied Physics　Quantum Matter PhysicsAssociate Professor

Researcher basic information

■ Degree
  • 博士（理学）, 北海道大学
■ URL
researchmap URLホームページURL■ Various IDs
J-Global ID■ Educational Organization

Research activity information

■ Papers
  • Possible Spatial Correlation between Superconducting and Pseudogap Dynamics in a Bi-based Cuprate
    Taisei Shimizu; Tohru Kurosawa; Satoshi Tsuchiya; Reiji Tobise; Keisaku Yamane; Ryuji Morita; Yasunori Toda; Migaku Oda
    Journal of the Physical Society of Japan, 15 May 2026
    Scientific journal
  • Dependence of superconducting and pseudogap quasiparticle dynamics on the number of CuO2 planes in Bi-based cuprate superconductors
    Taisei Shimizu; Tohru Kurosawa; Satoshi Tsuchiya; Yasunori Toda; Shigeyuki Ishida; Hiroshi Eisaki; Migaku Oda
    Physical Review B, 14 May 2026
    Scientific journal
  • Dual origin in the temperature dependence of the coupling parameter for the strange metal state in heavily overdoped cuprate superconductor
    Yudai Miyai; Shin-ichiro Ideta; Masashi Arita; Kiyohisa Tanaka; Migaku Oda; Tohru Kurosawa; Kenya Shimada
    Physical Review Research, 24 Feb. 2025, [Peer-reviewed]
    Scientific journal
  • Photoinduced quasiparticle dynamics of single CuO2 -layer Bi-based cuprates with out-of-plane disorder
    T. Akiba; Y. Toda; S. Tsuchiya; M. Oda; T. Kurosawa; D. Mihailovic; T. Mertelj
    Physical Review B, 109, 1, American Physical Society (APS), 09 Jan. 2024
    Scientific journal
  • Dielectric response in the antiferromagnetic phase of Fe1.10Te
    Kazuoki Yokoi; Issei Miyazaki; Koichi Ichimura; Satoshi Tanda; Noriaki Matsunaga; Tohru Kurosawa; Migaku Oda
    Solid State Communications, 371, 115262, 115262, Elsevier BV, Oct. 2023
    Scientific journal
  • Charge Ordering and Superconducting State in β′′-(BEDT-TTF)4[(H3O)Ga(C2O4)3]·C6H5NO2 Studied by STM/STS
    Koichi Ichimura; Hiroki Kokubo; Satoshi Tanda; Tohru Kurosawa; Migaku Oda; Hiroki Honma; Noriaki Matsunaga; Kazuto Moribe; Yoshihiko Ihara; Atsushi Kawamoto
    Proceedings of the 29th International Conference on Low Temperature Physics (LT29), Journal of the Physical Society of Japan, 22 May 2023
    International conference proceedings
  • Optical vortex induced spatio-temporally modulated superconductivity in a high-Tc cuprate
    Yasunori Toda; Satoshi Tsuchiya; Keisaku Yamane; Ryuji Morita; Migaku Oda; Tohru Kurosawa; Tomaz Mertelj; Dragan Mihailovic
    Optics Express, 31, 11, 17537, 17537, Optica Publishing Group, 10 May 2023
    Scientific journal, We report an experimental approach to produce spatially localized photoinduced superconducting state in a cuprate superconductor using optical vortices with ultrafast pulses. The measurements were carried out using coaxially aligned three-pulse time-resolved spectroscopy, in which an intense vortex pulse was used for coherent quenching of superconductivity and the resulting spatially modulated metastable states were analyzed by the pump-probe spectroscopy. The transient response after quenching shows a spatially localized superconducting state that remains unquenched at the dark core of the vortex beam for a few picoseconds. Because the quenching is instantaneously driven by photoexcited quasiparticles, the vortex beam profile can be transferred directly to the electron system. By using the optical vortex-induced superconductor, we demonstrate spatially resolved imaging of the superconducting response and show that the spatial resolution can be improved using the same principle as that of super-resolution microscopy for fluorescent molecules. The demonstration of spatially controlled photoinduced superconductivity is significant for establishing a new method for exploring novel photoinduced phenomena and applications in ultrafast optical devices.
  • Fate of charge order in overdoped La-based cuprates
    K. von Arx; Qisi Wang; S. Mustafi; D. G. Mazzone; M. Horio; D. John Mukkattukavil; E. Pomjakushina; S. Pyon; T. Takayama; H. Takagi; T. Kurosawa; N. Momono; M. Oda; N. B. Brookes; D. Betto; W. Zhang; T. C. Asmara; Y. Tseng; T. Schmitt; Y. Sassa; J. Chang
    npj Quantum Materials, 8, 1, Springer Science and Business Media LLC, 19 Jan. 2023
    Scientific journal, Abstract

    In high-temperature cuprate superconductors, stripe order refers broadly to a coupled spin and charge modulation with a commensuration of eight and four lattice units, respectively. How this stripe order evolves across optimal doping remains a controversial question. Here we present a systematic resonant inelastic x-ray scattering study of weak charge correlations in La2−xSrxCuO4 and La1.8−xEu0.2SrxCuO4. Ultra high energy resolution experiments demonstrate the importance of the separation of inelastic and elastic scattering processes. Long-range temperature-dependent stripe order is only found below optimal doping. At higher doping, short-range temperature-independent correlations are present up to the highest doping measured. This transformation is distinct from and preempts the pseudogap critical doping. We argue that the doping and temperature-independent short-range correlations originate from unresolved electron–phonon coupling that broadly peaks at the stripe ordering vector. In La2−xSrxCuO4, long-range static stripe order vanishes around optimal doping and we discuss both quantum critical and crossover scenarios.
  • Uniaxial pressure induced stripe order rotation in La1.88Sr0.12CuO4
    Qisi Wang; K. von Arx; D. G. Mazzone; S. Mustafi; M. Horio; J. Küspert; J. Choi; D. Bucher; H. Wo; J. Zhao; W. Zhang; T. C. Asmara; Y. Sassa; M. Månsson; N. B. Christensen; M. Janoschek; T. Kurosawa; N. Momono; M. Oda; M. H. Fischer; T. Schmitt; J. Chang
    Nature Communications, 13, 1, Springer Science and Business Media LLC, Dec. 2022
    Scientific journal, Abstract

    Static stripe order is detrimental to superconductivity. Yet, it has been proposed that transverse stripe fluctuations may enhance the inter-stripe Josephson coupling and thus promote superconductivity. Direct experimental studies of stripe dynamics, however, remain difficult. From a strong-coupling perspective, transverse stripe fluctuations are realized in the form of dynamic “kinks”—sideways shifting stripe sections. Here, we show how modest uniaxial pressure tuning reorganizes directional kink alignment. Our starting point is La1.88Sr0.12CuO4 where transverse kink ordering results in a rotation of stripe order away from the crystal axis. Application of mild uniaxial pressure changes the ordering pattern and pins the stripe order to the crystal axis. This reordering occurs at a much weaker pressure than that to detwin the stripe domains and suggests a rather weak transverse stripe stiffness. Weak spatial stiffness and transverse quantum fluctuations are likely key prerequisites for stripes to coexist with superconductivity.
  • Single-domain stripe order in a high-temperature superconductor
    Gediminas Simutis; Julia Küspert; Qisi Wang; Jaewon Choi; Damian Bucher; Martin Boehm; Frédéric Bourdarot; Mads Bertelsen; Chennan N Wang; Tohru Kurosawa; Naoki Momono; Migaku Oda; Martin Månsson; Yasmine Sassa; Marc Janoschek; Niels B. Christensen; Johan Chang; Daniel G. Mazzone
    Communications Physics, 5, 1, Springer Science and Business Media LLC, 21 Nov. 2022
    Scientific journal, Abstract

    The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials. A model example is unconventional superconductivity, which is widely believed to arise from the coupling of electrons via spin excitations. In cuprate high-temperature superconductors, the interplay of charge and spin degrees of freedom is also reflected in a zoo of charge and spin-density wave orders that are intertwined with superconductivity. A key question is whether the different types of density waves merely coexist or are indeed directly coupled. Here we profit from a neutron scattering technique with superior beam-focusing that allows us to probe the subtle spin-density wave order in the prototypical high-temperature superconductor La$${}_{1.88}$$Sr$${}_{0.12}$$CuO$${}_{4}$$ under applied uniaxial pressure to demonstrate that the two density waves respond to the external tuning parameter in the same manner. Our result shows that suitable models for high-temperature superconductivity must equally account for charge and spin degrees of freedom via uniaxial charge-spin stripe fluctuations.
  • Pseudogap suppression by competition with superconductivity in La-based cuprates
    J. Küspert; R. Cohn Wagner; C. Lin; K. von Arx; Q. Wang; K. Kramer; W. R. Pudelko; N. C. Plumb; C. E. Matt; C. G. Fatuzzo; D. Sutter; Y. Sassa; J.-Q. Yan; J.-S. Zhou; J. B. Goodenough; S. Pyon; T. Takayama; H. Takagi; T. Kurosawa; N. Momono; M. Oda; M. Hoesch; C. Cacho; T. K. Kim; M. Horio; J. Chang
    Physical Review Research, 4, 4, American Physical Society (APS), 10 Oct. 2022
    Scientific journal
  • Competition between spin ordering and superconductivity near the pseudogap boundary in La2−xSrxCuO4 : Insights from NMR
    I. Vinograd; R. Zhou; H. Mayaffre; S. Krämer; S. K. Ramakrishna; A. P. Reyes; T. Kurosawa; N. Momono; M. Oda; S. Komiya; S. Ono; M. Horio; J. Chang; M.-H. Julien
    Physical Review B, 106, 5, American Physical Society (APS), 31 Aug. 2022
    Scientific journal
  • Evidence for a Square-Square Vortex Lattice Transition in a High- Tc Cuprate Superconductor
    D. J. Campbell; M. Frachet; S. Benhabib; I. Gilmutdinov; C. Proust; T. Kurosawa; N. Momono; M. Oda; M. Horio; K. Kramer; J. Chang; M. Ichioka; D. LeBoeuf
    Physical Review Letters, 129, 6, American Physical Society (APS), 02 Aug. 2022
    Scientific journal
  • Unveiling Unequivocal Charge Stripe Order in a Prototypical Cuprate Superconductor
    J. Choi; Q. Wang; S. Jöhr; N. B. Christensen; J. Küspert; D. Bucher; D. Biscette; M. H. Fischer; M. Hücker; T. Kurosawa; N. Momono; M. Oda; O. Ivashko; M. v. Zimmermann; M. Janoschek; J. Chang
    Physical Review Letters, 128, 20, American Physical Society (APS), 20 May 2022
    Scientific journal
  • Charge density waves in cuprate superconductors beyond the critical doping
    H. Miao; G. Fabbris; R. J. Koch; D. G. Mazzone; C. S. Nelson; R. Acevedo-Esteves; G. D. Gu; Y. Li; T. Yilimaz; K. Kaznatcheev; E. Vescovo; M. Oda; T. Kurosawa; N. Momono; T. Assefa; I. K. Robinson; E. S. Bozin; J. M. Tranquada; P. D. Johnson; M. P. M. Dean
    npj Quantum Materials, 6, 1, Springer Science and Business Media LLC, Dec. 2021
    Scientific journal, AbstractThe unconventional normal-state properties of the cuprates are often discussed in terms of emergent electronic order that onsets below a putative critical doping of xc ≈ 0.19. Charge density wave (CDW) correlations represent one such order; however, experimental evidence for such order generally spans a limited range of doping that falls short of the critical value xc, leading to questions regarding its essential relevance. Here, we use X-ray diffraction to demonstrate that CDW correlations in La2−xSrxCuO4 persist up to a doping of at least x = 0.21. The correlations show strong changes through the superconducting transition, but no obvious discontinuity through xc ≈ 0.19, despite changes in Fermi surface topology and electronic transport at this doping. These results demonstrate the interaction between CDWs and superconductivity even in overdoped cuprates and prompt a reconsideration of the role of CDW correlations in the high-temperature cuprate phase diagram.
  • Fast spectroscopic mapping of two-dimensional quantum materials
    Berk Zengin; Jens Oppliger; Danyang Liu; Lorena Niggli; Tohru Kurosawa; Fabian D. Natterer
    PHYSICAL REVIEW RESEARCH, 3, 4, Nov. 2021
    English, Scientific journal
  • Ultrafast transient reflectivity measurements of optimally doped Bi2+xSr2-xCaCu2O8+delta with disorder
    Y. Toda; S. Tsuchiya; M. Oda; T. Kurosawa; S. Katsumata; M. Naseska; T. Mertelj; D. Mihailovic
    PHYSICAL REVIEW B, 104, 9, Sep. 2021
    English, Scientific journal
  • Normal state specific heat in the cuprate superconductors La2-xSrxCuO4 and Bi2+ySr2-x-yLaxCuO6+δ near the critical point of the pseudogap phase
    C. Girod; D. Leboeuf; A. Demuer; G. Seyfarth; S. Imajo; K. Kindo; Y. Kohama; M. Lizaire; A. Legros; A. Gourgout; H. Takagi; T. Kurosawa; M. Oda; N. Momono; J. Chang; S. Ono; G. Q. Zheng; C. Marcenat; L. Taillefer; T. Klein
    Physical Review B, 103, 21, 01 Jun. 2021
    Scientific journal
  • High magnetic field ultrasound study of spin freezing in La1.88Sr0.12CuO4
    M. Frachet; S. Benhabib; I. Vinograd; S.-F. Wu; B. Vignolle; H. Mayaffre; S. Krämer; T. Kurosawa; N. Momono; M. Oda; J. Chang; C. Proust; M.-H. Julien; D. LeBoeuf
    Physical Review B, 103, 11, American Physical Society ({APS}), 18 Mar. 2021, [Peer-reviewed]
    Scientific journal
  • Hidden magnetism at the pseudogap critical point of a cuprate superconductor
    Mehdi Frachet; Igor Vinograd; Rui Zhou; Siham Benhabib; Shangfei Wu; Hadrien Mayaffre; Steffen Kramer; Sanath K. Ramakrishna; Arneil P. Reyes; Jerome Debray; Tohru Kurosawa; Naoki Momono; Migaku Oda; Seiki Komiya; Shimpei Ono; Masafumi Horio; Johan Chang; Cyril Proust; David LeBoeuf; Marc-Henri Julien
    NATURE PHYSICS, 16, 10, 1064, +, Oct. 2020, [Peer-reviewed]
    English, Scientific journal
  • Impurity Effects on Superconductivity of LaO1-xFxBi1-ySbyS2 through Specific Heat Measurements
    Ying Wang; Shotaro Takahashi; Takaya Suda; Taro Tamura; Haruka Ohta; Tohru Kurosawa; Migaku Oda; Masayuki Ido; Naoki Momono
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89, 9, Sep. 2020, [Peer-reviewed]
    English, Scientific journal
  • High-Temperature Charge-Stripe Correlations in La1.675Eu0.2Sr0.125CuO4
    Qisi Wang; M. Horio; K. von Arx; Y. Shen; D. John Mukkattukavil; Y. Sassa; O. Ivashko; C. E. Matt; S. Pyon; T. Takayama; H. Takagi; T. Kurosawa; N. Momono; M. Oda; T. Adachi; S. M. Haidar; Y. Koike; Y. Tseng; W. Zhang; J. Zhao; K. Kummer; M. Garcia-Fernandez; Ke-Jin Zhou; N. B. Christensen; H. M. Ronnow; T. Schmitt; J. Chang
    PHYSICAL REVIEW LETTERS, 124, 18, May 2020, [Peer-reviewed]
    English, Scientific journal
  • Coexistence of the Kondo effect and spin glass physics in Fe-doped NbS2
    Hiroyoshi Nobukane; Yuichi Tabata; Tohru Kurosawa; Daiki Sakabe; Satoshi Tanda
    Journal of Physics: Condensed Matter, 32, 165803, 1769, The Physical Society of Japan, Jan. 2020, [Peer-reviewed]
    Japanese
  • Anomalous Transport Properties in BiS2-based Superconductors LnO(1-x),FxBiS2 (Ln = Nd, La-Sm)
    Sho Iwasaki; Yoshiki Kawai; Shotaro Takahashi; Takaya Suda; Ying Wang; Yasunori Koshino; Fumiya Ogura; Yoshiyuki Shibayama; Tohru Kurosawa; Migaku Oda; Masayuki Ido; Naoki Momono
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88, 4, Apr. 2019, [Peer-reviewed]
    English, Scientific journal
  • Direct observation of orbital hybridisation in a cuprate superconductor
    C. E. Matt; D. Sutter; A. M. Cook; Y. Sassa; M. Månsson; O. Tjernberg; L. Das; M. Horio; D. Destraz; C. G. Fatuzzo; K. Hauser; M. Shi; M. Kobayashi; V. N. Strocov; T. Schmitt; P. Dudin; M. Hoesch; S. Pyon; T. Takayama; H. Takagi; O. J. Lipscombe; S. M. Hayden; T. Kurosawa; N. Momono; M. Oda; T. Neupert; J. Chang
    Nature Communications, 9, 1, 01 Dec. 2018, [Peer-reviewed]
    English, Scientific journal
  • Pseudogap phase of cuprate superconductors confined by Fermi surface topology
    N. Doiron-Leyraud; O. Cyr-Choiniere; S. Badoux; A. Ataei; C. Collignon; A. Gourgout; S. Dufour-Beausejour; F. F. Tafti; F. Laliberte; M. -E. Boulanger; M. Matusiak; D. Graf; M. Kim; J. -S. Zhou; N. Momono; T. Kurosawa; H. Takagi; Louis Taillefer
    NATURE COMMUNICATIONS, 8, Dec. 2017, [Peer-reviewed]
    English, Scientific journal
  • Dynamics of superconducting order parameter through ultrafast normal-to-superconducting phase transition in Bi2Sr2CaCu2O8+delta from multipulse polarization-resolved transient optical reflectivity
    I. Madan; V. V. Baranov; Y. Toda; M. Oda; T. Kurosawa; V. V. Kabanov; T. Mertelj; D. Mihailovic
    PHYSICAL REVIEW B, 96, 18, Nov. 2017, [Peer-reviewed]
    English, Scientific journal
  • Nonequilibrium Quasiparticle Dynamics in Bi-Based Superconductors Measured by Modulation Photoexcitation Spectroscopy
    Y. Toda; H. Mochizuki; S. Tsuchiya; T. Kurosawa; M. Oda; T. Mertelj; D. Mihailovic
    Journal of Superconductivity and Novel Magnetism, 31, 3, 1, 4, 11 Oct. 2017, [Peer-reviewed]
    English, Scientific journal
  • 1/8 Anomaly Induced by the Substitution of Dy in Underdoped Bi2Sr2Ca1-xDyxCu2O8+delta
    K. Kawamura; Y. Kobayashi; C. Kobashi; S. Baar; T. Kurosawa; M. Oda; M. Ido; N. Momono
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 30, 8, 2037, 2042, Aug. 2017, [Peer-reviewed]
    English, Scientific journal
  • Rotation symmetry breaking in La2-xSrxCuO4 revealed by angle-resolved photoemission spectroscopy
    E. Razzoli; C. E. Matt; Y. Sassa; M. Mansson; O. Tjernberg; G. Drachuck; M. Monomo; M. Oda; T. Kurosawa; Y. Huang; N. C. Plumb; M. Radovic; A. Keren; L. Patthey; J. Mesot; M. Shi
    PHYSICAL REVIEW B, 95, 22, Jun. 2017, [Peer-reviewed]
    English, Scientific journal
  • Damped spin excitations in a doped cuprate superconductor with orbital hybridization
    O. Ivashko; N. E. Shaik; X. Lu; C. G. Fatuzzo; M. Dantz; P. G. Freeman; D. E. McNally; D. Destraz; N. B. Christensen; T. Kurosawa; N. Momono; M. Oda; C. E. Matt; C. Monney; H. M. Ronnow; T. Schmitt; J. Chang
    PHYSICAL REVIEW B, 95, 21, Jun. 2017, [Peer-reviewed]
    English, Scientific journal
  • STM/STS study on electronic superstructures in the superconducting state of high-Tc cuprate Bi2Sr2CaCu2O8+d
    S. Mizuta; T. Kurosawa; K Takeyama; N. Momono; Y. Ishii; H. Yoshida; M. Oda; M. Ido
    Journal of Physics: Condensed Matter, 2017, [Peer-reviewed]
  • The Impurity Effects on the Superconducting Gap in the High-T-c Superconductor Bi2Sr2CaCu2-xFexO8+delta Investigated by STM/STS
    S. Baar; N. Momono; K. Kawamura; Y. Kobayashi; S. Iwasaki; T. Sakawaki; Y. Amakai; H. Takano; T. Kurosawa; M. Oda; M. Ido
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 29, 3, 659, 662, Mar. 2016, [Peer-reviewed]
    English, Scientific journal
  • The Dy-substitution effects on superconductivity in Bi2Sr2CaCu2O8+δ
    Kawamura Kazuma; Kobayashi Yuki; Kobashi Chisato; Baar Stefan; Matsumoto Kazuyuki; Momono Naoki; Kurosawa Tohru; Oda Migaku; Ido Masayuki
    Meeting Abstracts of the Physical Society of Japan, 71, 1996, 1996, The Physical Society of Japan, 2016
    Japanese,

    !LaTeX 銅酸化物高温超伝導体Bi_2_Sr_2_CaCu_2_O_8+${\delta}$_(Bi2212)では，CaサイトのDy置換によりエネルギーギャップがd波からずれて大きくなることが報告されている．本研究では，このDy添加について知見を得る目的でBi_2_Sr_2_Ca_1-x_Dy_x_Cu_2_O_8+${\delta}$_単結晶を用いた磁化や熱電能の測定，走査トンネル顕微鏡を用いた実験を行った．

  • STM/STS study on the charge order and energy gaps of Bi2212
    Mizuta S.; Kishi A.; Yonekawa Y.; Kurosawa T.; Momono N.; Takeyama K.; Yoshida H.; Oda M.; Ido M.
    Meeting Abstracts of the Physical Society of Japan, 71, 1993, 1993, The Physical Society of Japan, 2016
    Japanese,

    銅酸化物高温超伝導体Bi2212のアンダードープ試料においてSTM/STS実験を行い、この系で問題となっている電荷秩序が観測されるエネルギー領域（電子的な準粒子状態に対応する正の適当なエネルギー領域でのみ観測されるか？）について調べた。また、このエネルギー領域と超伝導ギャップや擬ギャップとの関係についても調べた。講演では、これらの結果について報告する。

  • The substitution effects of Sb in the layered superconductor LaO1-xFxBi1-ySbyS2
    Sakawaki Takuma; Iwasaki Sho; Kawai Yoshiki; Kurosawa Tohru; Oda Migaku; Ido Masayuki; Amakai Yusuke; Takano Hideaki; Momono Naoki
    Meeting Abstracts of the Physical Society of Japan, 71, 2191, 2191, The Physical Society of Japan, 2016
    Japanese,

    典型的な層状硫化物超伝導体の1つであるLaO_1-x_F_x_BiS_2_の超伝導転移温度T_c_はFのドープ量に依存し、x = 0.5(最適ドープ)で最も高くT_c_〜2.7 Kとなる。興味深いことにT_c_は高圧合成あるいは圧力印加で10.6 Kまで大きく上昇する。本研究では常圧下合成において、幅広い組成のLaO_1-x_F_x_BiS_2_、及びBiサイトをSbで部分置換したLaO_1-x_F_x_Bi_1-y_Sb_y_S_2_の単結晶を作製し、超伝導に対するSbの置換効果を調べた。当日はそれらの結果について報告する。

  • Superconductivity and transport properties in BiS2-based layered superconductors LnO1-xFxBiS2(Ln=La,Nd)
    Iwasaki Sho; Sakawaki Takuma; Takahashi Shotaro; Kurosawa Tohru; Oda Migaku; Ido Masayuki; Amakai Yusuke; Takano Hideaki; Momono Naoki
    Meeting Abstracts of the Physical Society of Japan, 71, 2190, 2190, The Physical Society of Japan, 2016
    Japanese,

    典型的なBiS_2_系超伝導体LnO_1-x_F_x_BiS_2_(Ln=La,Ce,Pr,Nd)はO^2-^をF^-^で置換することにより電子が伝導層にドープされ超伝導が発現し、超伝導転移温度T_c_はF濃度に依存する。LaO_1-x_F_x_BiS_2_(La系)とNdO_1-x_F_x_BiS_2_(Nd系)はxに対するT_c_カーブが異なっており、T_c_のピーク位置にズレが生じている。本研究ではLa系とNd系に注目し、F置換による超伝導や電子系の変化を輸送特性から調べ、La系とNd系における超伝導や電子系の特徴について知見を得ることを目的とした。

  • The Sr-site substitution effects on superconductivity in Bi2Sr2-xLnxCuO6+δ(Ln=La, Nd, Eu)
    Kobayashi Yuki; Kawamura Kazuma; Baar Stefan; Kaimai Nozomu; Momono Naoki; Matsumoto Kazuyuki; Kurosawa Tohru; Oda Migaku; Ido Masayuki
    Meeting Abstracts of the Physical Society of Japan, 71, 1918, 1918, The Physical Society of Japan, 2016
    Japanese,

    銅酸化物超伝導体Bi_2_Sr_2_CuO_6+!LaTeX$\d$_はCu-O面の上下にあるSr-O面にSrとイオン半径が大きく異なる希土類元素Lnを添加すると超伝導転移温度T_c_が大きく抑制されることが報告されている。近年、ARPESやSTM/STSからこのような面間のdisorderの効果が調べられ、面間disorderの増強に伴いアンチノード付近のギャップの発達が顕著になると報告されている。本研究ではBi_2_Sr_2-x_Ln_x_CuO_6+!LaTeX$\d$_(Ln=La, Nd, Eu)において面間disorderが超伝導に及ぶす影響について主にSTM/STSから調べたので報告する。

  • Photoinduced Superconducting Gap and Pseudogap Dynamics in High-Tc Cuprates
    Toda Yasunori; Kurosawa Tohru; Oda Migaku
    Butsuri, 71, 12, 830, 835, 一般社団法人 日本物理学会, 2016
    Japanese, <p>We present polarization and coherent quench analyses of the gap dynamics in Bi-based high-<i>T</i><sub>c</sub> cuprates (Bi2212) using femtosecond optical pump-probe spectroscopy. The polarization analysis has addressed the rotational symmetry breakings of the dynamics, which are suppressed at room temperature and appears below <i>T</i><sup>*</sup>. The coherent quench experiment of the pseudogap has indicated an absence of long-range electronic order beyond a few coherence lengths on short timescales.</p>
  • STM/STS studies for interplane disorder effects on the electronic states of the Cu-O plane in Bi2201
    T. Kurosawa; G. Hatta; H. Miyazaki; J. Yamaji; K. Yoshikawa; Y. Nakagawa; Y. Shibata; H. Yoshida; M. Oda; M. Ido; K. Takeyama; N. Momono
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 29, 25-26, Oct. 2015, [Peer-reviewed]
    English, Scientific journal
  • Nodal gap behavior of Bi(2)Sr(2-x)Ln(x)CuO(6+delta) (Ln = La, Eu) investigated by specific heat measurements
    M. Shimizu; Y. Moriya; S. Baar; N. Momono; Y. Amakai; H. Takano; S. Murayama; T. Kurosawa; M. Oda; M. Ido
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 29, 25-26, Oct. 2015, [Peer-reviewed]
    English, Scientific journal
  • Time-resolved polarimetry for photoexcited QP dynamics in Bi2212
    K. Watanabe; S. Tsuchiya; Y. Toda; T. Kurosawa; M. Oda; T. Mertelj; I. Madan; V. V. Kabanov; D. Mihailovic
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 29, 25-26, Oct. 2015, [Peer-reviewed]
    English, Scientific journal
  • Electron scattering, charge order, and pseudogap physics in La1.6-xNd0.4SrxCuO4: An angle-resolved photoemission spectroscopy study
    C. E. Matt; C. G. Fatuzzo; Y. Sassa; M. Mansson; S. Fatale; V. Bitetta; X. Shi; S. Pailhes; M. H. Berntsen; T. Kurosawa; M. Oda; N. Momono; O. J. Lipscombe; S. M. Hayden; J. -Q. Yan; J. -S. Zhou; J. B. Goodenough; S. Pyon; T. Takayama; H. Takagi; L. Patthey; A. Bendounan; E. Razzoli; M. Shi; N. C. Plumb; M. Radovic; M. Grioni; J. Mesot; O. Tjernberg; J. Chang
    PHYSICAL REVIEW B, 92, 13, Oct. 2015, [Peer-reviewed]
    English, Scientific journal
  • Evidence for carrier localization in the pseudogap state of cuprate superconductors from coherent quench experiments
    I. Madan; T. Kurosawa; Y. Toda; M. Oda; T. Mertelj; D. Mihailovic
    NATURE COMMUNICATIONS, 6, Apr. 2015, [Peer-reviewed]
    English, Scientific journal
  • Impurity Effects on the Energy Gap in Fe-doped Bi2212
    Stefan Baar; N. Momono; J. Suzuki; J. Soda; K. Kobayashi; H. Takano; Y. Amakai; T. Kurosawa; M. Oda; M. Ido
    20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015, 75, 18, 22, 2015, [Peer-reviewed]
    English, International conference proceedings
  • 19aPS-16 Fe substitution effects in Bi_2Sr_2CaCu_2O_<8+δ> studied by STM/STS
    Suzuki J.; Kawamura K.; Kobayashi Y.; Momono N.; Amakai Y.; Takano H.; Kurosawa T.; Oda M.; Ido M.
    Meeting Abstracts of the Physical Society of Japan, 70, 2110, 2110, The Physical Society of Japan (JPS), 2015
    Japanese
  • 19aPS-17 Gap structure of Bi_2Sr_2Ca_<1-x>Dy_xCu_2O_<8+δ> studied by STM/STS
    Soda J.; Kawamura K.; Momono N.; Amakai Y.; Takano H.; Kurosawa T.; Oda M.; Ido M.
    Meeting Abstracts of the Physical Society of Japan, 70, 2111, 2111, The Physical Society of Japan (JPS), 2015
    Japanese
  • 24pDC-4 STM/STS Study on Gap Structure in Overdoped Region of Bi2212
    Kishi A.; Yonekawa Y.; Kurosawa T.; Momono N.; Takeyama K.; Yoshida H.; Oda M.; Ido M.
    Meeting Abstracts of the Physical Society of Japan, 70, 2484, 2484, The Physical Society of Japan (JPS), 2015
    Japanese
  • 24pDC-3 STM/STS Study on Charge Order and Quasiparticle Interference in Underdoped Bi2212
    Yonekawa Y.; Itagaki S.; Kishi A.; Kurosawa T.; Momono N.; Yoshida H.; Takeyama K.; Oda M.; Ido M.
    Meeting Abstracts of the Physical Society of Japan, 70, 2483, 2483, The Physical Society of Japan (JPS), 2015
    Japanese
  • Rotational symmetry breaking in Bi2Sr2CaCu2O8+delta probed by polarized femtosecond spectroscopy
    Y. Toda; F. Kawanokami; T. Kurosawa; M. Oda; I. Madan; T. Mertelj; V. V. Kabanov; D. Mihailovic
    PHYSICAL REVIEW B, 90, 9, Sep. 2014, [Peer-reviewed]
    English, Scientific journal
  • Separating pairing from quantum phase coherence dynamics above the superconducting transition by femtosecond spectroscopy
    I. Madan; T. Kurosawa; Y. Toda; M. Oda; T. Mertelj; P. Kusar; D. Mihailovic
    SCIENTIFIC REPORTS, 4, Jul. 2014, [Peer-reviewed]
    English, Scientific journal
  • Impact of pseudogap on photoinduced superconducting phase transition in underdoped Bi2212
    Y. Toda; T. Mertelj; P. Kusar; T. Kurosawa; M. Oda; M. Ido; D. Mihailovic
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 493, 112, 113, Oct. 2013, [Peer-reviewed]
    English, Scientific journal
  • Charge stripe structure in FeTe
    Y. Kawashima; K. Ichimura; J. Ishioka; T. Kurosawa; M. Oda; K. Yamaya; S. Tanda
    PHYSICA B-CONDENSED MATTER, 407, 11, 1796, 1798, Jun. 2012, [Peer-reviewed]
    English, Scientific journal
  • Ni-impurity effects on the superconducting gap of La 2-xSr xCuO 4 studied from the magnetic field and temperature dependence of the electronic specific heat
    T. Kurosawa; N. Momono; M. Oda; M. Ido
    Physical Review B - Condensed Matter and Materials Physics, 85, 13, 23 Apr. 2012, [Peer-reviewed]
    English, Scientific journal
  • Spin density wave induced disordering of the vortex lattice in superconducting La2-xSrxCuO4
    J. Chang; J. S. White; M. Laver; C. J. Bowell; S. P. Brown; A. T. Holmes; L. Maechler; S. Streassle; R. Gilardi; S. Gerber; T. Kurosawa; N. Momono; M. Oda; M. Ido; O. J. Lipscombe; S. M. Hayden; C. D. Dewhurst; R. Vavrin; J. Gavilano; J. Kohlbrecher; E. M. Forgan; J. Mesot
    PHYSICAL REVIEW B, 85, 13, Apr. 2012, [Peer-reviewed]
    English, Scientific journal
  • Ni-impurity effects on the superconducting gap of La2-xSrxCuO4 studied from the magnetic field and temperature dependence of the electronic specific heat
    T. Kurosawa; N. Momono; M. Oda; M. Ido
    PHYSICAL REVIEW B, 85, 13, Apr. 2012, [Peer-reviewed]
    English, Scientific journal
  • Charge-parity symmetry observed through Friedel oscillations in chiral charge-density waves
    J. Ishioka; T. Fujii; K. Katono; K. Ichimura; T. Kurosawa; M. Oda; S. Tanda
    PHYSICAL REVIEW B, 84, 24, Dec. 2011, [Peer-reviewed]
    English, Scientific journal
  • Quasiparticle relaxation dynamics in underdoped Bi2Sr2CaCu2O8+delta by two-color pump-probe spectroscopy
    Y. Toda; T. Mertelj; P. Kusar; T. Kurosawa; M. Oda; M. Ido; D. Mihailovic
    PHYSICAL REVIEW B, 84, 17, Nov. 2011, [Peer-reviewed]
    English, Scientific journal
  • Time-resolved polarimetry for photoexcited QP dynamics in Bi2212
    K. Watanabe; S. Tsuchiya; Y. Toda; T. Kurosawa; M. Oda; T. Mertelj; I. Madan; V. V. Kabanov; D. Mihailovic
    Int. J. Mod. Phys. B 29, 1542031(1-7) (2015), 29, 1542031, 2011, [Peer-reviewed]
    English
  • Electron tunneling using STM/STS on iron-based oxypnictides
    Yuuki Kawashima; Koichi Ichimura; Toru Kurosawa; Migaku Oda; Satoshi Tanda; Hiroki Takahashi; Hironari Okada; Yoichi Kamihara; Hideo Hosono
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 470, S315, S316, Dec. 2010, [Peer-reviewed]
    English, Scientific journal
  • Ni-impurity effects on the superconducting gap of La2-xSrxCuO4: Measurements of the electronic specific heat under magnetic fields
    T. Kurosawa; N. Momono; H. Amitsuka; M. Oda; M. Ido
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 470, S42, S43, Dec. 2010, [Peer-reviewed]
    English, Scientific journal
  • Chiral Charge-Density Waves
    J. Ishioka; Y. H. Liu; K. Shimatake; T. Kurosawa; K. Ichimura; Y. Toda; M. Oda; S. Tanda
    PHYSICAL REVIEW LETTERS, 105, 17, Oct. 2010, [Peer-reviewed]
    English, Scientific journal
  • Chiral Charge-Density Waves
    J. Ishioka; Y. H. Liu; K. Shimatake; T. Kurosawa; K. Ichimura; Y. Toda; M. Oda; S. Tanda
    PHYSICAL REVIEW LETTERS, 105, 17, Oct. 2010, [Peer-reviewed]
    English, Scientific journal
  • Impurity Effects on Energy Gap in Bi2Sr2CaCu2O8+y Investigated by Electronic Raman Scattering
    N. Momono; T. Kurosawa; Y. Amakai; Y. Sato; T. Suzuki; H. Takano; S. Murayama; A. Sakai; M. Oda; M. Ido
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 23, 5, 785, 787, Jul. 2010, [Peer-reviewed]
    English, Scientific journal
  • Measurement of chirality of charge-density-waves in TiSe2 by using STM
    J. Ishioka; Y. H. Liu; K. Shimatake; T. Kurosawa; K. Ichimura; Y. Toda; M. Oda; S. Tanda
    PHYSICA B-CONDENSED MATTER, 405, 11, S214, S216, Jun. 2010, [Peer-reviewed]
    English, Scientific journal
  • Large pseudogap and nodal superconducting gap in Bi2Sr2-xLaxCuO6+delta and Bi2Sr2CaCu2O8+delta: Scanning tunneling microscopy and spectroscopy
    T. Kurosawa; T. Yoneyama; Y. Takano; M. Hagiwara; R. Inoue; N. Hagiwara; K. Kurusu; K. Takeyama; N. Momono; M. Oda; M. Ido
    PHYSICAL REVIEW B, 81, 9, Mar. 2010, [Peer-reviewed]
    English, Scientific journal
  • Electronic Raman Scattering in Zn-doped Bi2Sr2CaCu2O8+delta
    N. Momono; T. Kurosawa; M. Naito; M. Oda; M. Ido; Y. Aamakai; H. Takano; S. Murayama; A. Sakai
    25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5, 150, 2009, [Peer-reviewed]
    English, International conference proceedings
  • STM/STS study in the stripe-ordered state of La2-x-yNdySrxCuO4 (x=1/8, y similar to 0.4)
    N. Momono; T. Kurosawa; T. Endo; K. Kurusu; K. Takeyama; M. Oda; M. Ido
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69, 12, 3031, 3033, Dec. 2008, [Peer-reviewed]
    English, Scientific journal
  • On the electronic inhomogeneity of underdoped Bi2Sr2CaCu2O8+delta
    Y. H. Liu; K. Takeyama; T. Kurosawa; N. Momono; M. Oda; M. Ido
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69, 12, 3039, 3041, Dec. 2008, [Peer-reviewed]
    English, Scientific journal
  • Superconducting Gap and Pseudogap Structure in LaFeAsO1-xFx Probed by STM/STS
    Koichi Ichimura; Junya Ishioka; Toru Kurosawa; Katsuhiko Inagaki; Migaku Oda; Satoshi Tanda; Hiroki Takahashi; Hironari Okada; Yoichi Kamihara; Masahiro Hirano; Hideo Hosono
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77, 151, 152, Nov. 2008, [Peer-reviewed]
    English, Scientific journal
  • Fermi-arc superconductivity, pseudogap and charge order in Bi2Sr2CaCu2O8+delta
    T. Kurosawa; M. Oda; Y. H. Liu; K. Takeyama; N. Momono; M. Ido
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69, 9, 2265, 2267, Sep. 2008, [Peer-reviewed]
    English, Scientific journal
  • On the relations among the pseudogap, electronic charge order and Fermi-arc superconductivity in Bi2Sr2CaCu2O8+delta
    M. Oda; Y. H. Liu; T. Kurosawa; K. Takeyama; N. Momono; M. Ido
    INTERNATIONAL SYMPOSIUM ON LATTICE EFFECTS IN CUPRATE HIGH TEMPERATURE SUPERCONDUCTORS (LEHTSC2007), 108, 2008, [Peer-reviewed]
    English, International conference proceedings
  • STM study on the period of charge order in the PG state of Bi2212
    K. Takeyama; Y. H. Liu; T. Kurosawa; N. Momono; M. Oda; M. Ido
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 21, 18-19, 3220, 3223, Jul. 2007, [Peer-reviewed]
    English, Scientific journal
  • 4ax4a electronic charge order enhanced in the inhomogeneous pseudogap state of Bi2Sr2CaCu2O8+delta
    Y. H. Liu; K. Takeyama; T. Kurosawa; N. Momono; M. Oda; M. Ido
    PHYSICAL REVIEW B, 75, 21, Jun. 2007, [Peer-reviewed]
    English, Scientific journal
■ Other Activities and Achievements
■ Research Themes