独立行政法人理化学研究所 基幹研究所 強相関量子科学研究グループ


All

FY 2010

FY 2011

FY 2012


論文

* は査読付

  1. * S. Nakosai, J. C. Budich, Y. Tanaka, B. Trauzettel, and N. Nagaosa.
    "Majorana bound states and non-local spin correlations in a quantum wire on an unconventional superconductor"
    Phys. Rev. Lett. 110, 117002 (12 March 2013)
  2. * M. Kubota, K. Shibuya, Y. Tokunaga, F. Kagawa, A. Tsukazaki, Y. Tokura, M. Kawasaki
    "Systematic control of stress-induced anisotropy in pseudomorphic iron garnet thin films"
    J. Magn. Magn. Mater. 339, 63 (07 March 2013)
  3. * M. Sakano, M. S. Bahramy, A. Katayama, T. Shimojima, H. Murakawa, Y. Kaneko, W. Malaeb, S. Shin, K. Ono, H. Kumigashira, R. Arita, N. Nagaosa, H. Y. Hwang, Y. Tokura, and K. Ishizaka
    "Strongly Spin-Orbit Coupled Two-Dimensional Electron Gas Emerging near the Surface of Polar Semiconductors"
    Phys. Rev. Lett. 110, 107204 (07 March 2013)
  4. * Shinichi Itoh, Yasuo Endoh, Tetsuya Yokoo, Daichi Kawana, Yoshio Kaneko, Yoshinori Tokura, and Masaki Fujita
    "Neutron Brillouin Scattering with Pulsed Spallation Neutron Source —Spin-Wave Excitations from Ferromagnetic Powder Samples—"
    J. Phys. Soc. Jpn. 82, 043001 (06 March 2013)
  5. * Sachio Horiuchi, Reiji Kumai, & Yoshinori Tokura
    "High-Temperature and Pressure-Induced Ferroelectricity in Hydrogen-Bonded Supramolecular Crystals of Anilic Acids and 2, 3-Di(2-pyridinyl)pyrazine"
    J. Am. Chem. Soc. 135(11), 4492-4500 (28 February 2013)
  6. * P. A. Lee and N. Nagaosa
    "Proposal to use neutron scattering to access scalar spin chirality fluctuations in kagome lattices"
    Phys. Rev. B 87, 064423 (28 February 2013)
  7. * Y. Yamaki, Y. Yamasaki, H. Nakao, Y. Murakami, Y. Kaneko, and Y. Tokura
    "X-ray photoinduced persistent and bidirectional phase transition enabled by impurity doping in layered manganite"
    Phys. Rev. B 87, 081107(R) (28 February 2013)
  8. * C. Bell, M. S. Bahramy, H. Murakawa, J. G. Checkelsky, R. Arita,Y. Kaneko, Y. Onose, N. Nagaosa, Y. Tokura, and H. Y. Hwang
    "Shubnikov–de Haas oscillations in the bulk Rashba semiconductor BiTeI"
    Phys. Rev. B 87, 081109(R) (28 February 2013)
  9. * Bohm-Jung Yang, Mohammad Saeed Bahramy & Naoto Nagaosa
    "Topological protection of bound states against the hybridization"
    Nature Communications 4, 1524 (26 February 2013)
  10. * T. Makino, Y. Segawa, A. Tsukazaki, H. Saito, S. Takeyama, S. Akasaka, K. Nakahara,
    and M. Kawasaki
    "Magneto-photoluminescence of charged excitons from MgxZn1−xO/ZnO heterojunctions"
    Phys. Rev. B 87, 085312 (25 February 2013)
  11. * V. Kocsis, S. Bordács, D. Varjas, K. Penc, A. Abouelsayed, C. A. Kuntscher, K. Ohgushi, Y. Tokura, I. Kézsmárki
    "Magnetoelasticity in ACr2O4 spinel oxides (A = Mn, Fe, Co, Ni, and Cu)"
    Phys. Rev. B 87, 064416 (20 February 2013)
  12. * Bohm-Jung Yang, Mohammad Saeed Bahramy, Ryotaro Arita, Hiroki Isobe, Eun-Gook Moon, and Naoto Nagaosa
    "Theory of Topological Quantum Phase Transitions in 3D Noncentrosymmetric Systems"
    Phys. Rev. Lett. 110, 086402 (19 February 2013)
  13. * J. Iwasaki, M. Mochizuki, and N. Nagaosa
    "Universal current-velocityrelation of skyrmion motion in chiral magnets"
    Nature Communications 4, 2442 (12 February 2013)
  14. * P.-H. Xiang, S. Asanuma, H. Yamada, H. Sato, I. H. Inoue, H. Akoh, A. Sawa, M. Kawasaki, and Y. Iwasa
    "Electrolyte-Gated SmCoO3 Thin-Film Transistors Exhibiting Thickness-Dependent Large Switching Ratio at Room Temperature"
    Advanced Materials 25(05 February 2013)
  15. * T. Kurumaji, S. Seki, S. Ishiwata, H. Murakawa, Y. Kaneko, and Y. Tokura
    "Magnetoelectric responses induced by domain rearrangement and spin structural change in triangular-lattice helimagnets NiI2 and CoI2"
    Phys. Rev. B 87, 014429 (25 January 2013)
  16. * Sachio Horiuchi, Fumitaka Kagawa, Kensuke Hatahara, Kensuke Kobayashi, Reiji Kumai,
    Youichi Murakami & Yoshinori Tokura
    "Above-room-temperature ferroelectricity and antiferroelectricity in benzimidazoles"
    Nature Communications 3, 1308 (18 December 2012)
  17. * Y. Kasahara, Y. Oshima, J. Falson, Y. Kozuka, A. Tsukazaki, M. Kawasaki, Y. Iwasa
    "Correlation-Enhanced Effective Mass of Two-Dimensional Electrons in MgxZn1-xO/ZnO Heterostructures"
    Phys. Rev. Lett. 109, 246401 (10 December 2012)
  18. * K. Sawabe, M. Imakawa, M. Nakano, T. Yamao, S. Hotta, Y. Iwasa, T. Takenobu,
    "Current-Confinement Structure and Extremely High Current Density in Organic Light-Emitting Transistors"
    Adv. Mater. 24, 6141-6146 (04 December 2012)
  19. * J.T. Ye, Y. J. Zhang, R. Akashi, M. S. Bahramy, R. Arita, Y. Iwasa
    "Superconducting Dome in a Gate-Tuned Band Insulator"
    Science 338, 1193-1196 (30 November 2012)
  20. * N. Nagaosa, X. Z. Yu and Y. Tokura
    "Gauge fields in real and momentum spaces in magnets: monopoles and skyrmions"
    Phil. Trans. R. Soc. A, 370, 5806-5819 (19 November 2012)
  21. * Y. Shiomi, S. Iguchi, and Y. Tokura
    "Emergence of topological Hall effect from fanlike spin structure as modified by Dzyaloshinsky-Moriya interaction in MnP"
    Phys. Rev. B 86, 180404(R) (15 November 2012)
  22. * N. Kanazawa, J.-H. Kim, D. S. Inosov, J. S. White, N. Egetenmeyer, J. L. Gavilano, S. Ishiwata,
    Y. Onose, T. Arima, B. Keimer, and Y. Tokura
    "Possible skyrmion-lattice ground state in the B20 chiral-lattice magnet MnGe as seen via small-angle neutron scattering"
    Phys. Rev. B 86, 134425 (25 October 2012)
  23. * M.S. Bahramy, P.D.C King, A. de la Torre, J. Chang, M. Shi, L. Patthey, G. Balakrishnan, Ph. Hofmann, R. Arita, N. Nagaosa & F. Baumberger
    "Emergent quantum confinement at topological insulator surfaces"
    Nature Communications 3, 1159 (23 October 2012)
  24. * H. Isobe and N. Nagaosa
    "Theory of a quantum critical phenomenon in a topological insulator: (3+1)-dimensional quantum electrodynamics in solids"
    Phys. Rev. B 86, 165127 (19 October 2012)
  25. * M. Uchida, Y. Yamasaki, Y. Kaneko, K. Ishizaka, J. Okamoto, H. Nakao, Y. Murakami,
    and Y. Tokura
    "Pseudogap-related charge dynamics in the layered nickelate R2−xSrxNiO4 (x∼1)"
    Phys. Rev. B 86, 165126-1 - 165126-6 (19 October 2012)
  26. * Farzad Mahfouzi, Naoto Nagaosa, and Branislav K. Nikolic
    "Spin-Orbit Coupling Induced Spin-Transfer Torque and Current Polarization in Topological-Insulator/Ferromagnet Vertical Heterostructures"
    Phys. Rev. Lett. 109, 166602 (17 October 2012)
  27. * L. Demko, G. A. H. Schober, V. Kocsis, M. S. Bahramy, H. Murakawa, J. S. Lee, I. Kezsmarki, R. Arita, N. Nagaosa, and Y. Tokura
    "Enhanced Infrared Magneto-Optical Response of the Nonmagnetic Semiconductor BiTeI Driven by Bulk Rashba Splitting"
    Phys. Rev. Lett. 109, 167401 (15 October 2012)
  28. * H. Isobe and N. Nagaosa
    "Renormalization Effects on Quasi-Two-Dimensional Organic Conductor α-(BEDT-TTF)2I3"
    J. Phys. Soc. Jpn. 81,113704 (11 October 2012)
  29. * M. Garganourakis, V. Scagnoli, S. W. Huang, U. Staub, H. Wadati, M. Nakamura, V. A. Guzenko, M. Kawasaki and Y. Tokura
    "Imprinting Magnetic Information in Manganites with X Rays"
    Phys. Rev. Lett. 109, 157203 (09 October 2012)
  30. * Y. Nii, H. Sagayama, T. Arima, S. Aoyagi, R. Sakai, S. Maki, E. Nishibori, H. Sawa, K. Sugimoto, H. Ohsumi, M. Takata
    "Orbital structures in spinel vanadates AV2O4 (A = Fe, Mn)"
    Phys. Rev. B 86, 125142 (28 September 2012)
  31. * K. Ueda, J. Fujioka, Y. Takahashi, T. Suzuki, S. Ishiwata, Y. Taguchi, and Y. Tokura
    "Variation of Charge Dynamics in the Course of Metal-Insulator Transition for Pyrochlore-Type Nd2Ir2O7"
    Phys. Rev. Lett. 109, 136402 (27 September 2012)
  32. * Masashi Kawasaki & Yoshihiro Iwasa
    "Electronics: ‘Cut and stick’ ion gels"
    Nature 489, 510–511 (26 September 2012)
  33. * T. Kiss, A. Chainani, H. M. Yamamoto, T. Miyazaki, T. Akimoto, T. Shimojima, K. Ishizaka, S. Watanabe, C.–T. Chen, A. Fukaya, R. Kato, S. Shin,
    "Quasiparticles and Fermi liquid behavior in an organic metal"
    Nature Communications 3, 1089 (25 September 2012)
  34. * Jun'ichi Ozaki, Masaki Tezuka, and Norio Kawakami
    "Collision of one-dimensional fermion clusters"
    Phys. Rev. A 86, 033621 (18 September 2012)
  35. * Masao Nakamura, Masashi Kawasaki, and Yoshinori Tokura
    "eg-level splitting in a layered perovskite manganite as revealed by charge modulation spectroscopy"
    Phys. Rev. B 86, 125127 (18 September 2012)
  36. * Y. Kozuka, H. Seki, T. Fujita, S. Chakraverty, K. Yoshimatsu, H. Kumigashira, M. Oshima, M. Bahramy, R. Arita, M. Kawasaki
    Epitaxially Stabilized EuMoO3: A New Itinerant Ferromagnet
    Chem. Mater., 24 (19), 3746–3750 (14 September 2012)
  37. * D. Asahi and N. Nagaosa
    "Topological indices, defects, and Majorana fermions in chiral superconductors"
    Phys. Rev. B 86, 100504 (14 September 2012)
  38. * Masashi Kubota, Atsushi Tsukazaki, Fumitaka Kagawa, Keisuke Shibuya, Yusuke Tokunaga, Masashi Kawasaki, and Yoshinori Tokura
    "Stress-Induced Perpendicular Magnetization in Epitaxial Iron Garnet Thin Films"
    Appl. Phys. Express 5, 103002 (13 September 2012)
  39. * H. Sakai, J. Fujioka, T. Fukuda, M. S. Bahramy, D. Okuyama, R. Arita, T. Arima, A. Q. R. Baron, Y. Taguchi, and Y. Tokura
    "Soft phonon mode coupled with antiferromagnetic order in incipient-ferroelectric Mott insulators Sr1−xBaxMnO3"
    Phys. Rev. B 86, 104407 (05 September 2012)
  40. * Y. Kozuka, J. Falson, Y. Segawa, T. Makino, A. Tsukazaki, and M. Kawasaki
    "Precise calibration of Mg concentration in MgxZn1-XO thin films grown on ZnO substrates"
    J. Appl. Phys. 112, 043515 (29 August 2012)
  41. * Y. W. Long, Y. Kaneko, S. Ishiwata, Y. Tokunaga, T. Matsuda, H. Wadati, Y. Tanaka, S. Shin, Y. Tokura, and Y. Taguchi
    "Evolution of magnetic phases in single crystals of SrFe1−xCoxO3 solid solution"
    Phys. Rev. B 86, 064436 (27 August 2012)
  42. * S. Bordács, I. Kézsmárki, D. Szaller, L. Demkó, N. Kida, H. Murakawa, Y. Onose, R. Shimano, T. Rõõm, U. Nagel,
    S. Miyahara, N. Furukawa, & Y. Tokura
    "Chirality of matter shows up via spin excitations"
    Nature Physics doi:10.1038/nphys2387 (26 August 2012)
  43. * Joseph G. Checkelsky, Jianting Ye, Yoshinori Onose, Yoshihiro Iwasa & Yoshinori Tokura
    "Dirac-fermion-mediated ferromagnetism in a topological insulator"
    Nature Physics doi:10.1038/nphys2388 (19 August 2012)
  44. * Yusuke Tokunaga, Yasujiro Taguchi, Taka-hisa Arima & Yoshinori Tokura
    "Electric-field-induced generation and reversal of ferromagnetic moment in ferrites"
    Nature Physics doi:10.1038/nphys2405 (19 August 2012)
  45. * M. Sakano, J. Miyawaki, A. Chainani, Y. Takata, T. Sonobe, T. Shimojima, M. Oura, S. Shin,
    M. S. Bahramy, R. Arita, N. Nagaosa, H. Murakawa, Y. Kaneko, Y. Tokura, and K. Ishizaka
    "Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting"
    Phys. Rev. B 86, 085204 (16 August 2012)
  46. * S. Seki, S. Ishiwata, and Y. Tokura
    "Magnetoelectric nature of skyrmions in a chiral magnetic insulator Cu2OSeO3"
    Phys. Rev. B 86, 060403(R) (09 August 2012)
  47. * X.Z. Yu, N. Kanazawa, W.Z. Zhang, T. Nagai, T. Hara, K. Kimoto, Y. Matsui,
    Y. Onose & Y. Tokura
    "Skyrmion flow near room temperature in an ultralow current density"
    Nature Communications 3, 988 (07 August 2012)
  48. * T. Makino, F. Liu, T. Yamasaki, Y. Kozuka, K. Ueno, A. Tsukazaki, T. Fukumura, Y. Kong, and M. Kawasaki
    "Ultrafast optical control of magnetization in EuO thin films"
    Phys. Rev. B 86, 064403 (02 August 2012)
  49. * A. Shitade and N. Nagaosa
    "Anomalous Hall Effect in Ferromagnetic Metals: Role of Phonons at Finite Temperature"
    J. Phys. Soc. Jpn. 81, 083704 (01 August 2012)
  50. * J. S. Lee, Hal. Q. Yamamoto, M. Uchida, and Y. Tokura
    "Spin and charge states of Co in half-doped layered cobaltates La1.5Ca0.5CoO4 and La1.5Sr0.5CoO4"
    Phys. Rev. B 86, 045319 (27 July 2012)
  51. * Sunao Shimizu, Ryutaro Yoshimi, Takafumi Hatano, Kei S. Takahashi, Atsushi Tsukazaki, Masashi Kawasaki, Yoshihiro Iwasa, and Yoshinori Tokura
    "Gate control of surface transport in MBE-grown topological insulator (Bi1−xSbx)2Te3 thin films"
    Phys. Rev. B 86, 045319 (27 July 2012)
  52. * M. Nakano, K. Shibuya, D. Okuyama, T. Hatano, S. Ono, M. Kawasaki, Y. Iwasa & Y. Tokura
    "Collective bulk carrier delocalization driven by electrostatic surface charge accumulation"
    Nature 487, 459–462 (26 July 2012)
  53. * Y. Onose, Y. Okamura, S. Seki, S. Ishiwata, and Y. Tokura
    "Observation of Magnetic Excitations of Skyrmion Crystal in a Helimagnetic Insulator Cu2OSeO3"
    Phys. Rev. Lett. 109, 037603 (20 July 2012)
  54. * Zhigao Sheng, Masao Nakamura, Fumitaka Kagawa, Masashi Kawasaki & Yoshinori Tokura
    "Dynamics of multiple phases in a colossal-magnetoresistive manganite as revealed by dielectric spectroscopy"
    Nature Communications 3, 944 ( 10 July 2012)
  55. * Y. Yomogida, J. Pu, H. Shimotani, S. Ono, S. Hotta, Y. Iwasa, T. Takenobu
    "Ambipolar organic single-crystal transistors based on ion gels"
    Adv. Mater. DOI: 10.1002/adma.201200655 ( published online: 22 June 2012 )
  56. * S. Seki, J.-H. Kim, D. S. Inosov, R. Georgii, S. Ishiwata, B. Keimer, and Y. Tokura
    "Formation and rotation of skyrmion crystal in the chiral-lattice insulator Cu2OSeO3"
    Phys. Rev. B 85, 220406 ( 22 June 2012)
  57. * Y. Kasahara, Y. Takeuchi, Y. Iwasa
    "Bulk superconductivity and fully gapped superconducting state in Ba-doped phenanthrene"
    Phys. Rev. B 85, 214520 ( 20 June 2012)
  58. * F. Liu, T. Makino, T. Yamasaki, K. Ueno, A. Tsukazaki, T. Fukumura, Y. Kong, and M. Kawasaki
    "Ultrafast Time-Resolved Faraday Rotation in EuO Thin Films"
    Phys. Rev. Lett. 108, 257401 ( 19 June 2012)
  59. * N. Sugimoto and N. Nagaosa
    "Spin-Orbit Echo"
    Science 336, 1413 ( 15 June 2012)
  60. * G. A. H. Schober, H. Murakawa, M. S. Bahramy, R. Arita, Y. Kaneko, Y. Tokura, and N. Nagaosa
    "Mechanisms of Enhanced Orbital Dia- and Paramagnetism: Application to the Rashba Semiconductor BiTeI"
    Phys. Rev. Lett. 108, 247208 ( 13 June 2012)
  61. * F. Kagawa, K. Hatahara, S. Horiuchi, and Y. Tokura
    "Domain-wall dynamics coupled to proton motion in a hydrogen-bonded organic ferroelectric"
    Phys. Rev. B 85, 220101(R) ( 08 June 2012)
  62. * X. Yu, M. Mostovoy, Y. Tokunaga, W. Zhang, K. Kimoto, Y. Matsui, Y. Kaneko, N. Nagaosa, and Y. Tokura
    "Magnetic stripes and skyrmions with helicity reversals"
    Proc. Nat. Acad. Sci. 109, 8856-8860 ( 05 June 2012)
  63. * Kensuke Kobayashi, Sachio Horiuchi, Reiji Kumai, Fumitaka Kagawa, Youichi Murakami, and Yoshinori Tokura
    "Electronic Ferroelectricity in a Molecular Crystal with Large Polarization Directing Antiparallel to Ionic Displacement"
    Phys. Rev. Lett. 108, 237601 ( 04 June 2012)
  64. * M. Sato, H. Katsura and N. Nagaosa
    "Theory of Raman Scattering in One-Dimensional Quantum Spin-1/2 Antiferromagnets"
    Phys. Rev. Lett. 108, 237401 ( 04 June 2012)
  65. * H. Murakawa, Y. Onose, S. Miyahara, N. Furukawa, and Y. Tokura
    "Comprehensive study of the ferroelectricity induced by the spin-dependent d- p hybridization mechanism in Ba2XGe2O7 (X = Mn, Co, and Cu)"
    Phys. Rev. B 85, 174106 ( 14 May 2012)
  66. * L. Demkó, S. Bordács, T. Vojta, D. Nozadze, F. Hrahsheh, C. Svoboda, B. Dóra, H. Yamada, M. Kawasaki, Y. Tokura, and I. Kézsmárki
    "Disorder Promotes Ferromagnetism: Rounding of the Quantum Phase Transition in Sr1-xCaxRuO3"
    Phys. Rev. Lett. 108, 185701 ( 3 May 2012)
  67. * D. Maryenko, J. Falson, Y. Kozuka, A. Tsukazaki, M. Onoda, H. Aoki, and M. Kawasaki
    "Temperature-Dependent Magnetotransport around ν=1/2 in ZnO Heterostructures"
    Phys. Rev. Lett. 108, 186803 ( 1 May 2012)
  68. * J. Fujioka, S. Ishiwata, Y. Kaneko, Y. Taguchi, and Y. Tokura
    "Variation of charge dynamics upon the helimagnetic and metal-insulator transitions for perovskite AFeO3 (A = Sr and Ca)"
    Phys. Rev. B 85, 155141 ( 27 April 2012)
  69. * S. Seki, X. Z. Yu, S. Ishiwata, Y. Tokura
    "Observation of Skyrmions in a Multiferroic Material"
    Science 336, no. 6078, pp. 198-201 ( 13 April 2012)
  70. * K. Ueda, S. Iguchi, T. Suzuki, S. Ishiwata, Y. Taguchi, and Y. Tokura
    "Topological Hall Effect in Pyrochlore Lattice with Varying Density of Spin Chirality"
    Phys. Rev. Lett. 108, 156601 ( 09 April 2012)
  71. * J. S. Lee, K. Shibuya, M. Kawasaki, and Y. Tokura
    "Optical investigation of metal-insulator transitions in V1−xWxO2 (0 ≤ x ≤ 0.33)"
    Phys. Rev. B 85, 155110 ( 06 April 2012)
  72. * S. Nakosai, Y. Tanaka, and N. Nagaosa
    "Topological Superconductivity in Bilayer Rashba System"
    Phys. Rev. Lett. 108, 147003 ( 05 April 2012)
  73. * T. Ideue, Y. Onose, H. Katsura, Y. Shiomi, S. Ishiwata, N. Nagaosa, and Y. Tokura
    "Effect of lattice geometry on magnon Hall effect in ferromagnetic insulators"
    Phys. Rev. B 85, 134411 ( 04 April 2012)
  74. * Z. Y. Chen, H. T. Yuan, Y. F. Zhan, K. Nomura, T. Gao, Y. Gao, H. Shimotani, Z. F. Liu, Y. Iwasa
    "Tunable spin-orbit interaction in trilayer graphene exemplified in electric-double-layer transistors"
    Nano Lett. 12, 2212-2216 ( 03 April 2012)