## Refereed papers in 2011

[828] |
"Competition between instabilities of Peierls transition and Mott transition in W-doped VO_{2} thin films"
E. Sakai, K. Yoshimatsu, K. Shibuya, H. Kumigashira, E. Ikenaga, M. Kawasaki, Y. Tokura and M. Oshima,Phys. Rev. B., 84, 195132 (2011) . |

[827] |
"Nonlinear phononics as an ultrafast route to lattice control"
M. Forst, C. Manzoni, S. Kaiser, Y. Tomioka, Y. Tokura, R. Merlin and A. Cavalleri, Nat. Phys., 7, 854 (2011) . |

[826] |
"Diffusive charge transport with strongly renormalized carrier mass in hole-doped Mott insulators (Y_{1−x}Cd_{x})_{2}Mo_{2}O_{7} with frustrated pyrochlore lattice"
S. Iguchi, Y. Kumano, K. Ueda, S. Kumakura, and Y. Tokura,Phys. Rev. B., 84, 174416 (2011) . |

[825] |
"X-ray induced insulator-metal transition in a thin film of electron-doped VO_{2}"
K. Shibuya, D. Okuyama, R. Kumai, Y. Yamasaki, H. Nakao, Y. Murakami, Y. Taguchi, T. Arima, M. Kawasaki and Y. TokuraPhys. Rev. B, 84, 165108 (2011) . |

[824] |
"Magnetoelectric resonance with electromagnons in a perovskite helimagnet"
Y. Takahashi, R. Shimano, Y. Kaneko, H. Murakawa and Y. Tokura, Nat. Phys., 8, 121 (2011) . |

[823] |
"Symmetry and Structure of Multiferroic Ba_{2}CoGe_{2}O_{7}"
V. Hutanu, A. Sazonov, H. Murakawa, Y. Tokura, B. Nafradi, and D. ChernyshovPhys. Rev. B, 84, 212101 (2011) . |

[822] |
"Orbital characters of three-dimensional Fermi surfaces in Eu_{2-x}Sr_{x}NiO_{4} as probed by soft-x-ray angle-resolved photoemission spectroscopy"
M. Uchida, K. Ishizaka, P. Hansmann, X. Yang, M. Sakano, J. Miyawaki, R. Arita, Y. Kaneko, Y. Takata, M. Oura, A. Toschi, K. Held, A. Chainani, O. K. Andersen, S. Shin and Y. Tokura,Phys. Rev. B, 84, 241109 (2011) . |

[821] |
"Complex magnetism and magnetic-field-driven electrical polarization of Co_{3}TeO_{6}"
M. Hudl, R. Mathieu, S. A. Ivanov, M. Weil, V. Carolus, Th. Lottermoser, M. Fiebig, Y. Tokunaga, Y. Taguchi, Y. Tokura and P. Nordblad,Phys. Rev. B, 84, 180404 (2011) . |

[820] |
"High-Pressure Hydrothermal Crystal Growth and Multiferroic Properties of a Perovskite YMnO_{3}"
S. Ishiwata, Y. Tokunaga, Y. Taguchi and Y. Tokura,J. Am. Chem. Soc., 133, 13818 (2011) . |

[819] |
"Displacement-Type Ferroelectricity with Off-Center Magnetic Ions in Perovskite Sr_{1-x}Ba_{x}MnO_{3}"
H. Sakai, J. Fujioka, T. Fukuda, D. Okuyama, D. Hashizume, F. Kagawa, H. Nakao, Y. Murakami, T. Arima, A. Q. R. Baron, Y. Taguchi and Y. Tokura,Phys. Rev. Lett., 107, 137601 (2011) . |

[818] |
"Optical Response of Relativistic Electrons in the Polar BiTeI Semiconductor"
J. S. Lee, G. A. H. Schober, M. S. Bahramy, H. Murakawa, Y. Onose, R. Arita, N. Nagaosa and Y. Tokura, Phys. Rev. Lett., 107, 117401 (2011) . |

[817] |
"Ferrimagnetism and spontaneous ordering of transition metals in double perovskite La_{2}CrFeO_{6} films"
S. Chakraverty, A. Ohtomo, D. Okuyama, M. Saito, M. Okude, R. Kumai, T. Arima, Y. Tokura, S. Tsukimoto, Y. Ikuhara and M. Kawasaki,Phys. Rev. B, 84, 064436 (2011) . |

[816] |
"Multiferroicity in NiBr_{2} with long-wavelength cycloidal spin structure on a triangular lattice"
Y. Tokunaga, D. Okuyama, T. Kurumaji, T. Arima, H. Nakao, Y. Murakami, Y. Taguchi and Y. Tokura,Phys. Rev. B, 84, 060406 (2011) . |

[815] |
"Common Origin of the Circular-Dichroism Pattern in Angle-Resolved Photoemission Spectroscopy of SrTiO_{3} and Cu_{x}Bi_{2}Se_{3}"
Y. Ishida, H. Kanto, A. Kikkawa, Y. Taguchi, Y. Ito, Y. Ota, K. Okazaki, W. Malaeb, M. Mulazzi, M. Okawa, S. Watanabe, C.-T. Chen, M. Kim, C. Bell, Y. Kozuka, H.Y. Hwang, Y. Tokura and S. Shin,Phys. Rev. Lett., 107, 077601 (2011) . |

[814] |
"Mott insulator to metal transition in filling-controlled SmMnAsO_{1-x}"
Y. Shiomi, S. Ishiwata, Y. Taguchi and Y. Tokura,Phys. Rev. B, 84, 054519 (2011) . |

[813] |
"Magnetically driven ferroelectric atomic displacements in orthorhombic YMnO_{3}"
D. Okuyama, S. Ishiwata, Y. Takahashi, K. Yamauchi, S. Picozzi, K. Sugimoto, H. Sakai, M. Takata, R. Shimano, Y. Taguchi, T. Arima and Y. Tokura,Phys. Rev. B, 84, 054440 (2011) . |

[812] |
"Spectral dependence of photoinduced spin precession in DyFeO_{3}"
R. Iida, T. Satoh, T. Shimura, K. Kuroda, B. A. Ivanov, Y. Tokunaga and Y. Tokura,Phys. Rev. B, 84, 064402 (2011) . |

[811] |
"Pulsed laser deposition and ionic liquid gate control ofepitaxial Bi_{2}Se_{3} thin films"
Y. Onose, R. Yoshimi, A. Tsukazaki, H. Yuan, T. Hidaka, Y. Iwasa, M. Kawasaki and Y. Tokura,Applied Physics Express, 4, 083001 (2011) . |

[810] |
"Versatile helimagnetic phases under magnetic fields in cubic perovskite SrFeO_{3}"
S. Ishiwata, M. Tokunaga, Y. Kaneko, D. Okuyama, Y. Tokunaga, S. Wakimoto, K. Kakurai, T. Arima, Y. Taguchi and Y. Tokura,Phys. Rev. B, 84, 054427 (2011) . |

[809] |
"Polar distortions in hydrogen-bonded organic ferroelectrics"
A. Stroppa, D. Di Sante, S. Horiuchi, Y. Tokura, D. Vanderbilt and S. Picozzi, Phys. Rev. B, 84, 014101 (2011) . |

[808] |
"Interfacial Structure of Manganite Superlattice"
Y. Yamasaki, D. Okuyama, M. Nakamura, T. Arima, M. Kawasaki, Y. Tokura, T. Kimura and Y. Wakabayashi, J. Phys. Soc. Jpn., 84, 073601 (2011) . |

[807] |
"Giant Rashba-type spin splitting in bulk BiTeI"
K. Ishizaka, M. S. Bahramy, H. Murakawa, M. Sakano, T. Shimojima, T. Sonobe, K. Koizumi, S. Shin, H. Miyahara, A. Kimura, K. Miyamoto, T. Okuda, H.Namatame, M. Taniguchi, R. Arita, N. Nagaosa, K. Kobayashi, Y. Murakami, R. Kumai, Y. Kaneko, Y. Onose and Y. Tokura, Nature Mater., 10, 521-526 (2011) . |

[806] |
"Hydrogen-Bonding Molecular Chains for High-Temperature Ferroelectricity"
S. Horiuchi, R. Kumai and Y. Tokura, Adv. Mater., 23, 2098-2103 (2011) . |

[805] |
"Terahertz Faraday rotation induced by an anomalous Hall effect in the itinerant ferromagnet SrRuO_{3}"
R. Shimano, Y. Ikebe, K. S. Takahashi, M. Kawasaki, N. Nagaosa and Y. Tokura,Europhys. Lett., 95, 17002 (2011) . |

[804] |
"Synthesis of cubic SrCoO_{3} single crystal and its anisotropic magnetic and transport properties"
Y. Long Y. Kaneko S. Ishiwata Y. Taguchi and Y. Tokura,J. Phys. Cond. Mat., 23, 245601 (2011) . |

[803] |
"Single-crystalline Sr_{2}MoO_{4} films as prepared by pulsed laser deposition"
A. Radetinac, K.S. Takahashi, L. Alff, M. Kawasaki and Y. Tokura,Journal of Crystal Growth, 322, 38-40 (2011) . |

[802] |
"Thermoelectric response in the incoherent transport region near Mott transition: The case study of La_{1-x}Sr_{x}VO_{3}"
M. Uchida, K. Oishi, M. Matsuo, W. Koshibae, Y. Onose, M. Mori, J. Fujioka, S. Miyasaka, S. Maekawa, and Y. Tokura,Phys. Rev. B, 83, 165127 (2011) . |

[801] |
"Ferromagnetic Enhancement of CE-Type Spin Ordering in (Pr,Ca)MnO_{3}"
S.Y. Zhou, Y. Zhu, M. C. Langner, Y.-D. Chuang, P. Yu, W. L. Yang, A. G. Cruz Gonzalez, N. Tahir, M. Rini, Y.-H. Chu, R. Ramesh, D.-H. Lee, Y. Tomioka, Y. Tokura, Z. Hussain and R.W. Schoenlein,Phys. Rev. Lett., 106, 186404 (2011) . |

[800] |
"Large Topological Hall Effect in a Short-Period Helimagnet MnGe"
N. Kanazawa, Y. Onose, T. Arima, D. Okuyama, K. Ohoyama, S. Wakimoto, K. Kakurai, S. Ishiwata and Y. Tokura, Phys. Rev. Lett., 106, 156603 (2011) . |

[799] |
"Magnetic-Field Induced Competition of Two Multiferroic Orders in a Triangular-Lattice Helimagnet MnI_{2}"
T. Kurumaji, S. Seki, S. Ishiwata, H. Murakawa, Y. Tokunaga, Y. Kaneko and Y. Tokura,Phys. Rev. Lett., 106, 167206 (2011) . |

[798] |
"Multiferroicity in an orthorhombic YMnO_{3} single-crystal film"
M. Nakamura, Y. Tokunaga, M. Kawasaki and Y. Tokura,Appl. Phys. Lett., 98, 082902 (2011) . |

[797] |
"Structural and magnetic phase transitions of the orthovanadates RVO _{3} (R = Dy, Ho, Er) as seen via neutron diffraction"
M. Reehuis, C. Ulrich, K. Prokes, S. Matas, J. Fujioka, S. Miyasaka, Y. Tokura and B. Keimer,Phys. Rev. B, 83, 064404 (2011) . |

[796] |
"Optical characterization of spin-charge-orbital orders in Pr(Sr_{1-y}Ca_{y})_{2}Mn_{2}O_{7}"
I. Ishii, Y. Tokunaga, J. Fujioka, Y. Onose, and Y. Tokura,Phys. Rev. B, 82, 245103 (2011) . |

[795] |
"Photoinduced transition from Mott insulator to metal in the undoped cuprates Nd_{2}CuO_{4} and La_{2}CuO_{4}"
H. Okamoto, T. Miyagoe, K. Kobayashi, H. Uemura, H. Nishioka, H. Matsuzaki, A. Sawa and Y. Tokura,Phys. Rev. B, 83, 125102 (2011) . |

[794] |
"Doping control and thermoelectric properties in R_{1-x}A_{x}ZnSbO (R= La, Ce; A=Ca, Sr)"
T. Suzuki, M. S. Bahramy, R. Arita, Y. Taguchi and Y. Tokura,Phys. Rev. B, 83, 035204 (2011) . |

[793] |
"Imaging oxygen defects and their motion at a manganite surface"
B. Bryant, Ch. Renner, Y. Tokunaga, Y. Tokura and G. Aeppli, Nature Comm., 2, 212 (2011) . |

[792] |
"Gigantic terahertz magnetochromism via electromagnons in the hexaferrite magnet Ba_{2}Mg_{2}Fe_{12}O_{22}"
N. Kida, S. Kumakura, S. Ishiwata, Y. Taguchi and Y. Tokura,Phys. Rev. B, 83, 064422 (2011) . |

[791] |
"Large magnetoresistance and spin-polarized heavy-mass electron state of the doped valence-bond solid (Ti_{1-x}V_{x})_{2}O_{3}"
M. Uchida, Y. Onose and Y. Tokura,Phys. Rev. B, 83, 052404 (2011) . |

[790] |
"Enhanced Directional Dichroism of Terahertz Light in Resonance with Magnetic Excitations of the Multiferroic Ba_{2}CoGe_{2}O_{7} Oxide Compound"
I. Kézsmárki, N. Kida, H. Murakawa, S. Bordács, Y. Onose, and Y. TokuraPhys. Rev. Lett., 106, 057403 (2011) . |

[789] |
"Effect of Spin Dilution on the Magnetic State of Delafossite CuCrO_{2} with an S = 3/2 Antiferromagnetic Triangular Sublattice"
T. Okuda, K. Uto, S. Seki, Y. Onose, Y. Tokura, R. Kajimoto and M. Matsuda,J. Phys. Soc. Jpn., 80, 014711 (2011) . |

[788] |
"Relaxation dynamics of multiferroic domain walls in DyMnO_{3} with cycloidal spin order"
F. Kagawa, Y. Onose, Y. Kaneko and Y. Tokura,Phys. Rev. B, 83, 054413 (2011) . |

[787] |
"Pseudogap of metallic layered nickelate R_{2-x}Sr_{x}NiO_{4} (R = Nd,Eu) crystals measured using angle-resolved photoemission spectroscopy"
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,Phys. Rev. Lett., 106, 027001 (2011) . |