独立行政法人理化学研究所 基幹研究所 物質機能創成研究領域 交差相関物性科学研究グループ

riken
CMRG home
English

Publications

FY 2012 FY 2011 FY 2010 FY 2009 FY 2008 FY 2007

論文

  1. B. Bryant, Ch. Renner, Y. Tokunaga, Y. Tokura, and G. Aeppli,
    "Imaging oxygen defects and their motion at a manganite surface"
    Nat. Commun. 2, 202 (2011).
  2. N. Kida, S. Kumakura, S. Ishiwata, Y. Taguchi, and Y. Tokura,
    "Gigantic terahertz magnetochromism via electromagnons in the hexaferrite magnet Ba2Mg2Fe12O22"
    Phys. Rev. B 83, 064422 (2011).
  3. M. Reehuis, C. Ulrich, K. Prokes, S. Matas, J. Fujioka, S. Miyasaka, Y. Tokura, and B. Keimer,
    "Structural and magnetic phase transitions of the orthovanadates RVO3 (R = Dy, Ho, Er) as seen via neutron diffraction"
    Phys. Rev. B 83, 064404 (2011).
  4. F. Kagawa,Y. Onose, Y. Kaneko, and Y. Tokura
    "Relaxation dynamics of multiferroic domain walls in DyMnO3 with cycloidal spin order"
    Phys. Rev. B 83, 054413 (2011).
  5. M. Uchida, Y. Onose, and Y. Tokura,
    "Large magnetoresistance and spin-polarized heavy-mass electron state of the doped valence-bond solid (Ti1-xVx)2O3"
    Phys. Rev. B 83, 052404 (2011).
  6. M. Nakamura, Y. Tokunaga, M. Kawasaki, and Y. Tokura,
    "Multiferroicity in an orthorhombic YMnO3 single-crystal film"
    Appl. Phys. Lett. 98, 082902 (2011).
  7. I. Kezsmarki, N. Kida, H. Murakawa, S. Bordacs, Y. Onose, and Y. Tokura,
    "Enhanced directional dichroism of Terahertz light in resonance with magnetic excitations of the multiferroic Ba2CoGe2O7 oxide compound"
    Phys. Rev. Lett. 106, 057403 (2011).
  8. M. Mostovoy, K. Nomura, and N. Nagaosa,
    "Theory of Electric Polarization in Multiorbital Mott Insulators"
    Phys. Rev. Lett. 106, 047204 (2011).
  9. M. Uchida, K. Ishizaka, P. Hansmann, Y. Kaneko, Y. Ishida, X. Yang, R. Kumai, A. Toschi, Y. Onose, R. Arita, K. Held, O. K. Andersen, S. Shin, and Y. Tokura,
    "Pseudogap of metallic layered nickelate R2-xSrxNiO4 (R = Nd,Eu) crystals measured using angle-resolved photoemission spectroscopy"
    Phys. Rev. Lett. 106, 027001 (2011).
  10. T. Takano, Y. Kasahara, T. Oguchi, I. Hase, Y. Taguchi, and Yoshihiro Iwasa,
    "Doping Variation of Optical Properties in ZrNCl Superconductors"
    J. Phys. Soc. Jpn. 80, 023702 (2011).
  11. T. Suzuki, M. S. Bahramy, R. Arita, Y. Taguchi, and Y. Tokura,
    "Doping control and thermoelectric properties in R1-xAxZnSbO (R=La,Ce; A=Ca,Sr)"
    Phys. Rev. B 83, 035204 (2011).
  12. D.J.J. Marchand, G. De Filippis, V. Cataudella, M. Berciu, N. Nagaosa, N.V. Prokof'ev, A.S. Mishchenko, and P.C.E. Stamp,
    "Sharp Transition for Single Polarons in the One-Dimensional Su-Schrieffer-Heeger Model"
    Phys. Rev. Lett. 105, 266605 (2010).
  13. Y. Tokunaga, Y. Kaneko, D. Okuyama, S. Ishiwata, T. Arima, S. Wakimoto, K. Kakurai, Y. Taguchi, and Y. Tokura,
    "Multiferroic M-type hexaferrites with a room-temperature conical state and magnetically controllable spin helicity"
    Phys. Rev. Lett. 105, 257201 (2010).
  14. B. Gu, I. Sugai, T. Ziman, G.Y. Guo, N. Nagaosa, T. Seki, K. Takanashi, and S. Maekawa,
    "Surface-Assisted Spin Hall Effect in Au Films with Pt Impurities"
    Phys. Rev. Lett. 105, 216401 (2010).
  15. X. Z. Yu, N. Kanazawa, Y. Onose, K. Kimoto, W. Z. Zhang, S. Ishiwata, Y. Matsui, and Y. Tokura,
    "Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe"
    Nature Mat. 10, 106 (2011).
  16. I. Ishii, Y. Tokunaga, J. Fujioka, Y. Onose, and Y. Tokura,
    "Optical characterization of spin-charge-orbital orders in Pr(Sr1-yCay)2Mn2O7"
    Phys. Rev. B 82, 245103 (2010).
  17. K. Shibuya, M. Kawasaki, and Y. Tokura,
    "Metal-insulator transitions in TiO2/VO2 superlattices"
    Phys. Rev. B 82, 205118 (2010).
  18. M. Nakamura, A. Sawa, J. Fujioka, M. Kawasaki, and Y. Tokura,
    "Interface band profiles of Mott-insulator/Nb : SrTiO3 heterojunctions as investigated by optical spectroscopy"
    Phys. Rev. B 82, 201101 (2010).
  19. A. Shitade, M. Ezawa, and N. Nagaosa,
    "Manipulation of two spin qubits in a double quantum dot using an electric field"
    Phys. Rev. B 82, 195305 (2010).
  20. R. Shindou, A. Furusaki, and N. Nagaosa,
    "Quantum impurity spin in Majorana edge fermions"
    Phys. Rev. B 82, 180505 (2010).
  21. H. Sakai, S. Ishiwata, D. Okuyama, A. Nakao, H. Nakao, Y. Murakami, Y. Taguchi, and Y. Tokura,
    "Electron doping in the cubic perovskite SrMnO3: Isotropic metal versus chainlike ordering of Jahn-Teller polarons"
    Phys. Rev. B 82, 180409 (2010).
  22. K. Nomura, and N. Nagaosa,
    "Electric charging of magnetic textures on the surface of a topological insulator"
    Phys. Rev. B 82, 161401 (2010).
  23. J. Fujioka, Y. Ida, Y. Takahashi, N. Kida, R.Shimano, and Y. Tokura,
    "Optical investigation of the collective dynamics of charge-orbital density waves in layered manganites"
    Phys. Rev. B 82, 140409 (2010).
  24. J. Fujioka, T. Yasue, S. Miyasaka, Y. Yamasaki, T. Arima, H. Sagayama, T. Inami, K. Ishii, and Y. Tokura,
    "Critical competition between two distinct orbital-spin ordered states in perovskite vanadates"
    Phys. Rev. B 82, 144425 (2010).
  25. G. De Filippis, V. Cataudella, R. Citro, C.A. Perroni, A.S. Mishchenko, and N. Nagaosa,
    "Interplay between charge-lattice interaction and strong electron correlations in cuprates: Phonon anomaly and spectral kinks"
    EPL 91, 47007 (2010).
  26. M. Mochizuki, and N. Nagaosa,
    "Theoretically Predicted Picosecond Optical Switching of Spin Chirality in Multiferroics"
    Phys. Rev. Lett. 105, 147202 (2010).
  27. H. Murakawa, Y. Onose, S. Miyahara, N. Furukawa, and Y. Tokura,
    "Ferroelectricity Induced by Spin-Dependent Metal-Ligand Hybridization in Ba2CoGe2O7"
    Phys. Rev. Lett. 105, 137202 (2010).
  28. Y. Kohara, Y. Yamasaki, Y. Onose, and Y. Tokura,
    "Excess-electron induced polarization and magnetoelectric effect in yttrium iron garnet"
    Phys. Rev. B 82, 104419 (2010).
  29. J.H. Han, J.D. Zang, Z. Yang, J.H. Park, and N. Nagaosa,
    "Skyrmion lattice in a two-dimensional chiral magnet"
    Phys. Rev. B 82, 094429 (2010).
  30. J. S. Lee, M. Nakamura, D. Okuyama, R. Kumai, T. Arima, M. Kawasaki, and Y. Tokura,
    "Competing electronic orders in anisotropically strained (Pr0.6Ca0.4)1-x(La0.6Sr0.4)xMnO3 thin films"
    Phys. Rev. B 82, 052406 (2010).
  31. Y. Krockenberger, M. Uchida, K. S. Takahashi, M. Nakamura, M. Kawasaki, and Y. Tokura,
    "Growth of superconducting Sr2RuO4 thin films"
    Appl. Phys. Lett. 97, 082502 (2010).
  32. S. Seki, N. Kida, S. Kumakura, R. Shimano, and Y. Tokura,
    "Electromagnons in the Spin Collinear State of a Triangular Lattice Antiferromagnet"
    Phys. Rev. Lett. 105, 097207 (2010).
  33. B. Gu, J.Y. Gan, N. Bulut, T. Ziman, G.Y. Guo, N. Nagaosa, S. Maekawa,
    "Quantum Renormalization of the Spin Hall Effect"
    Phys. Rev. Lett. 105, 086401 (2010).
  34. Y. Asano, Y. Tanaka, and N. Nagaosa,
    "Tunneling between Two Helical Superconductors via Majorana Edge Channels"
    Phys. Rev. Lett. 105, 056402 (2010).
  35. M. Mochizuki, N. Furukawa, and N. Nagaosa,
    "Spin Model of Magnetostrictions in Multiferroic Mn Perovskites"
    Phys. Rev. Lett. 105, 037205 (2010).
  36. S. Johnston, F. Vernay, B. Moritz, Z.X. Shen, N. Nagaosa, J. Zaanen, and T. P. Devereaux,
    "Systematic study of electron-phonon coupling to oxygen modes across the cuprates"
    Phys. Rev. B 82, 064513 (2010).
  37. S. Seki, T. Kurumaji, S. Ishiwata, H. Matsui, H. Murakawa, Y. Tokunaga, Y. Kaneko, T. Hasegawa, and Y. Tokura,
    "Cupric chloride CuCl2 as an S = 1/2 chain multiferroic"
    Phys. Rev. B 82, 064424 (2010).
  38. Y. Onose, T. Ideue, H. Katsura, Y. Shiomi, N. Nagaosa, and Y. Tokura,
    "Observation of the Magnon Hall Effect"
    Science 329, 297-299 (2010).
  39. Y. Kasahara, T. Kishiume, K. Kobayashi, Y. Taguchi, and Y. Iwasa,
    "Superconductivity in molecule-intercalated LixZrNCl with variable interlayer spacing"
    Phys. Rev. B 82, 054504 (2010).
  40. K. Lai, M. Nakamura, W. Kundhikanjana, M. Kawasaki, Y. Tokura, M. A. Kelly, and Z.-X. Shen,
    "Mesoscopic Percolating Resistance Network in a Strained Manganite Thin Film"
    Science 329, 190-193 (2010).
  41. A. Radetinac, K. S. Takahashi, L. Alff, M. Kawasaki, and Y. Tokura,
    "Single-Crystalline CaMoO3 and SrMoO3 Films Grown by Pulsed Laser Deposition in a Reductive Atmosphere"
    Appl. Phys. Express 3, 073003 (2010).
  42. X. Z. Yu, Y. Onose, N. Kanazawa, J. H. Park, J. H. Han, Y. Matsui, N. Nagaosa, and Y. Tokura,
    "Real-space observation of a two-dimensional skyrmion crystal"
    Nature 465, 901 (2010).
  43. T. Yokoyama, A.V. Balatsky, and N. Nagaosa,
    "Gate-Controlled One-Dimensional Channel on the Surface of a 3D Topological Insulator"
    Phys. Rev. Lett. 104, 246806 (2010).
  44. F. Kagawa,S. Horiuchi,H. Matsui, R. Kumai, Y. Onose, T. Hasegawa, and Y. Tokura,
    "Electric-Field Control of Solitons in a Ferroelectric Organic Charge-Transfer Salt"
    Phys. Rev. Lett. 104, 227602 (2010).
  45. J.D. Zang, and N. Nagaosa,
    "Monopole current and unconventional Hall response on a topological insulator"
    Phys. Rev. B 81, 245125 (2010).
  46. T. Yokoyama, J.D. Zang, and N. Nagaosa,
    "Theoretical study of the dynamics of magnetization on the topological surface"
    Phys. Rev. B 81, 241410 (2010).
  47. J. Linder, Y. Tanaka, T. Yokoyama, A. Sudbo, and N. Nagaosa,
    "Interplay between superconductivity and ferromagnetism on a topological insulator"
    Phys. Rev. B 81, 184525 (2010).
  48. K. S. Takahashi, J. Fujioka, Y. Ida, M. Kawasaki, and Y. Tokura,
    "Control of orbital ordered state in strained Nd0.25Sr1.75MnO4 films"
    Appl. Phys. Lett. 96, 202508 (2010).
  49. S. Ishiwata, D. Okuyama, K. Kakurai, M. Nishi, Y. Taguchi, and Y. Tokura,
    "Neutron diffraction studies on the multiferroic conical magnet Ba2Mg2Fe12O22"
    Phys. Rev. B 81, 174418 (2010).
  50. N. Nagaosa, J. Sinova, S. Onoda, A. H. MacDonald, and N. P. Ong,
    "Anomalous Hall effect"
    Rev. Mod. Phys. 82, 1539 (2010).
  51. M. Mochizuki, N. Furukawa, and N. Nagaosa,
    "Theory of Electromagnons in the Multiferroic Mn Perovskites: The Vital Role of Higher Harmonic Components of the Spiral Spin Order"
    Phys. Rev. Lett. 104, 177206 (2010 ).
  52. H. Sagayama, N. Abe, K. Taniguchi, T. Arima, Y. Yamasaki, D. Okuyama, Y. Tokura, S. Sakai, T. Morita, T. Komesu, H. Ohsumi, and M. Takata,
    "Observation of Spin Helicity Using Nonresonant Circularly Polarized X-ray Diffraction Analysis "
    J. Phys. Soc. Jpn. 79, 043711-1-4 (2010).
  53. Y. Tokura, and S. Seki,
    "Multiferroics with Spiral Spin Orders"
    Adv. Mater. 22 1554-1565 (2010).

新聞発表

  1. 2011/ 2/22 日刊工業新聞 「理研の最前線:第185回 革新的素子材で注目」
  2. 2010/ 7/23 科学新聞 「絶縁体が磁場印加で金属へ-相転移する様子を観察」
  3. 2010/ 7/ 9 日刊工業新聞 「マンガン酸化物薄膜 相転移の仕組み解明」
  4. 2010/ 7/ 9 日本経済新聞電子版 「磁場印加で絶縁体から金属へ相転移するミクロなメカニズムを解明」
  5. 2010/ 7/ 9 化学工業日報 「酸化物の相転移メカニズム解明」