Refereed papers in 2012

[882] "Magnetoelectric responses induced by domain rearrangement and spin structural change in triangular-lattice helimagnets NiI2 and CoI2" T. Kurumaji, S. Seki, S. Ishiwata, H. Murakawa, Y. Kaneko, and Y. Tokura
Phys. Rev. B, 87, 014429 (2012) .
[881] "Above-room-temperature ferroelectricity and antiferroelectricity in benzimidazoles" S. Horiuchi, F. Kagawa, K. Hatahara, K. Kobayashi, R. Kumai, Y. Murakami, Y. Tokura
Nat. Commun., 3, 1308 (2012) .
[880] "Electric-field-induced generation and reversal of ferromagnetic moment in ferrites" Y. Tokunaga, Y. Taguchi, T. Arima, and Y. Tokura
Nat. Phys., 8, 838-844 (2012) .
[879] "Emergence of topological Hall effect from fanlike spin structure as modified by Dzyaloshinsky-Moriya interaction in MnP" Y. Shiomi, S. Iguchi, and Y. Tokura
Phys. Rev. B, 86, 180404 (2012) .
[878] "Possible skyrmion-lattice ground state in the B20 chiral-lattice magnet MnGe as seen via small-angle neutron scattering" 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
Phys. Rev. B, 86, 134425 (2012) .
[877] "Imprinting Magnetic Information in Manganites with X Rays" M. Garganourakis, V. Scagnoli, S.W. Huang, and U. Staub, H. Wadati, M. Nakamura, V. A. Guzenko, M. Kawasaki and Y. Tokura
Phys. Rev. Lett., 109, 157203 (2012) .
[876] "Enhanced Infrared Magneto-Optical Response of the Nonmagnetic Semiconductor BiTeI Driven by Bulk Rashba Splitting" L. Demk?Lo, G. A. H. Schober, V. Kocsis, M. S. Bahramy, H. Murakawa, J. S. Lee, I. K?Lezsm?Larki, R. Arita, N. Nagaosa, and Y. Tokura
Phys. Rev. Lett., 109, 167401 (2012) .
[875] "Skyrmion flow near room temperature in an ultralow current density" X.Z. Yu, N. Kanazawa, W.Z. Zhang, T. Nagai, T. Hara, K. Kimoto, Y. Matsui, Y. Onose, and Y. Tokura
Nat. Commun., 3, 988 (2012) .
[874] "Pseudogap-related charge dynamics in the layered nickelate R2-xSrxNiO4 (x ?` 1)" M. Uchida, Y. Yamasaki, Y. Kaneko, K. Ishizaka, J. Okamoto, H. Nakao, Y. Murakami, and Y. Tokura
Phys. Rev. B, 86, 165126 (2012) .
[873] "Variation of Charge Dynamics in the Course of Metal-Insulator Transition for Pyrochlore-Type Nd2Ir2O7" K. Ueda, J. Fujioka, Y. Takahashi, T. Suzuki, S. Ishiwata, Y. Taguchi, and Y. Tokura
Phys. Rev. Lett., 109, 136402 (2012) .
[872] "Stress-induced perpendicular magnetization in epitaxial iron garnet thin films" M. Kubota, A. Tsukazaki, F. Kagawa, K. Shibuya, Y. Tokunaga, M. Kawasaki, and Y. Tokura
Appl. Phys. Express, 5, 103002 (2012) .
[871] "Determination of the magnetic order and the crystal symmetry in the multiferroic ground state of Ba2CoGe2O7" V. Hutanu, A. Sazonov, M. Meven, H. Murakawa, Y. Tokura, S. Bord?Lacs, I. K?Lezsm?Larki, and B. N?Lafr?Ladi
Phys. Rev. B, 86, 104401 (2012) .
[870] "Chirality of matter shows up via spin excitations" S. Bord?Lacs, I. K?Lezsm?Larki, D. Szaller, L. Demk?Lo, N. Kida, H. Murakawa, Y. Onose, R. Shimano, T. R˜o˜om, U. Nagel, S. Miyahara, N. Furukawa, and Y. Tokura
Nat. Phys., 8, 734 (2012) .
[869] "Dirac-fermion-mediated ferferromagnetism in a topological insulator" J. G. Checkelsky, J. Ye, Y. Onose, Y. Iwasa, and Y. Tokura
Nat. Phys., 8, 729 (2012) .
[868] "Observation of Magnetic Excitations of Skyrmion Crystal in a Helimagnetic Insulator Cu2OSeO3" Y. Onose, Y. Okamura, S. Seki, S. Ishiwata, and Y. Tokura
Phys. Rev. Lett., 109, 37603 (2012) .
[867] "eg-level splitting in a layered perovskite manganite as revealed by charge modulation spectroscopy" M. Nakamura, M. Kawasaki, and Y. Tokura
Phys. Rev. B, 86, 125127 (2012) .
[866] "Soft phonon mode coupled with antiferromagnetic order in incipient-ferroelectric Mott insulators Sr1-xBaxMnO3" H. Sakai, J. Fujioka, T. Fukuda, M. S. Bahramy, D. Okuyama, R. Arita, T. Arima, A. Q., R. Baron, Y. Taguchi, and Y. Tokura
Phys. Rev. B, 86, 104407 (2012) .
[865] "Evolution of magnetic phases in single crystals of SrFe1-xCoxO3 solid solution" Y. W. Long, Y. Kaneko, S. Ishiwata, and Y. Tokunaga, T. Matsuda, H.Wadati, Y. Tanaka, S. Shin, Y. Tokura, and Y. Taguchi
Phys. Rev. B, 86, 64436 (2012) .
[864] "Terahertz magnetoelectric response via electromagnons in magnetic oxides" N. Kida, and Y.Tokura
J. Magn. Magn. Mater. , 324, 3512 (2012) .
[863] "Dynamics of multiple phases in a colossal-magnetoresistive manganite as revealed by dielectric spectroscopy" Z. Sheng, M. Nakamura, F. Kagawa, M. Kawasaki, and Y. Tokura
Nat. Commun., 3, 994 (2012) .
[862] "Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting" 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
Phys. Rev. B, 86, 85204 (2012) .
[861] "Magnetoelectric nature of skyrmions in a chiral magnetic insulator Cu2OSeO3" S. Seki, S. Ishiwata, and Y. Tokura
Phys. Rev. B, 86, 60403 (2012) .
[860] "Spin and charge states of Co in half-doped layered cobaltates La1.5Ca0.5CoO4 and La1.5Sr0.5CoO4" J. S. Lee, Hal. Q. Yamamoto, M. Uchida, and Y. Tokura
Phys. Rev. B, 86, 45133 (2012) .
[859] "Gate control of surface transport in MBE-grown topological insulator (Bi1-xSbx)2Te3 thin films" S. Shimizu, R. Yoshimi, T. Hatano, KS. Takahashi, A. Tsukazaki, M. Kawasaki, Y. Iwasa, and Y. Tokura
Phys. Rev. B, 86, 45319 (2012) .
[858] "Collective bulk carrier delocalization driven by electrostatic surface charge accumulation" M. Nakano, K. Shibuya, D. Okuyama, T. Hatano, S. Ono, M. Kawasaki, Y. Iwasa, and Y. Tokura
Nature, 487, 459 (2012) .
[857] M. A. Hossain, B. Bohnenbuck, Y. D. Chuang, M. W. Haverkort, I. S. Elfimov, A. Tanaka, A. G. Cruz Gonzalez, Z. Hu, H.-J. Lin, C. T. Chen, R. Mathieu, Y. Tokura, Y. Yoshida, L. H., Tjeng, Z. Hussain, B. Keimer, G. A. Sawatzky, and A. Damascelli
Phys. Rev. B, 86, 41102 (2012) .
[856] "Spin-stretching Modes in Anisotropic Magnets: Spin-Wave Excitations in the Multiferroic Ba2CoGe2O7" K. Penc, J. Romhányi, T. Rõõm, U. Nagel, Á. Anta, T. Fehér, A. Jánossy, H. Engelkamp, H. Murakawa, Y. Tokura, D. Szaller, S. Bordács, and I. Kézsmárki
Phys. Rev. Lett., 108, 257203 (2012) .
[855] "Formation and rotation of skyrmion crystal in the chiral-lattice insulator Cu2OSeO3" S. Seki, J.-H. Kim, D. S. Inosov, R. Georgii, S. Ishiwata, B. Keimer, and Y. Tokura,
Phys. Rev. B, 85, 220406 (2012) .
[854] "Mechanisms of Enhanced Orbital Dia- and Paramagnetism: Application to the Rashba Semiconductor BiTeI" G. A. H. Schober, H. Murakawa, M. S. Bahramy, R. Arita, Y. Kaneko, Y. Tokura, and N. Nagaosa,
Phys. Rev. Lett., 108, 247208 (2012) .
[853] "Electronic Ferroelectricity in a Molecular Crystal with Large Polarization Directing Antiparallel to Ionic Displacement" K. Kobayashi, S. Horiuchi, R. Kumai, F. Kagawa, Y. Murakami, and Y. Tokura,
Phys. Rev. Lett., 108, 237601 (2012) .
[852] "Domain-wall dynamics coupled to proton motion in a hydrogen-bonded organic ferroelectric" F. Kagawa, K. Hatahara, S. Horiuchi, and Y. Tokura,
Phys. Rev. B, 85, 220101 (2012) .
[851] "Magnetic stripes and skyrmions with helicity reversals" X. Yu, M. Mostovoy, Y. Tokunaga, W. Zhang, K. Kimoto, Y. Matsui, Y. Kaneko, N. Nagaosa, and Y. Tokura,
Proc. Natl. Acad. Sci. U.S.A., 109, 8856-8860 (2012) .
[850] "Comprehensive study of the ferroelectricity induced by the spin-dependent d-p hybridization mechanism in Ba2XGe2O7 (X = Mn, Co, and Cu)" H. Murakawa, Y. Onose, S. Miyahara, N. Furukawa, and Y. Tokura,
Phys. Rev. B, 85, 174106 (2012) .
[849] "Thermoelectric Properties of Electron-Doped SrMnO3 Single Crystals with Perovskite Structure" T. Suzuki, H. Sakai, Y. Taguchi and Y. Tokura,
J. Electron. Mater., 41, 1559-63 (2012) .
[848] "Emergent phenomena in perovskite-type manganites" Y. Taguchi, H. Sakai , D. Okuyama, S. Ishiwata, J. Fujioka, T. Fukuda, D. Hashizume, F. Kagawa, Y. Takahashi, R. Shimano, Y. Tokunaga, Y. Kaneko, A. Nakao, H. Nakao, Y. Murakami, K. Sugimoto, M. Takata, K. Yamauchi, S. Picozzi, A.Q.R.Baron, T. Arimam, Y.Tokura,
Physica B, 407, 1685-1688 (2012) .
[847] "Disorder Promotes Ferromagnetism: Rounding of the Quantum Phase Transition in Sr1 -xCaxRuO3" L. Demkó, S. Bordács, T. Vojta, D. Nozadze, F. Hrahsheh, C. Svoboda, B. Dóra, H. Yamada, M. Kawasaki, Y. Tokura, and I. Kézsmárki,
Phys. Rev. Lett., 108, 185701 (2012) .
[846] "Variation of charge dynamics upon the helimagnetic and metal-insulator transitions for perovskite AFeO3 (A = Sr and Ca)" J. Fujioka, S. Ishiwata, Y. Kaneko, Y. Taguchi, and Y. Tokura,
Phys. Rev. B, 85, 155141 (2012) .
[845] "Effect of lattice geometry on magnon Hall effect in ferromagnetic insulators" T. Ideue, Y. Onose, H. Katsura, Y. Shiomi, S. Ishiwata, N. Nagaosa, and Y. Tokura,
Phys. Rev. B, 85, 134411 (2012) .
[844] "Magnetic Phase Diagrams of YVO3 and TbVO3 under High Pressure" D. Bizen, H. Nakao, K. Iwasa, Y. Murakamai, T. Osakabe, J. Fujioka, T. Yasue, S. Miyasaka and Y. Tokura,
J. Phys. Soc. Jpn., 81, 24715 (2012) .
[843] "Real-Space Observation of Skyrmion Lattice in Helimagnet MnSi Thin Samples" A. Tonomura, X. Yu, K. Yanagisawa, T. Matsuda, Y. Onose, N. Kanazawa, H. S. Park, and Y. Tokura,
Nano Lett., 12, 1673-1677 (2012) .
[842] "Topological Hall Effect in Pyrochlore Lattice with Varying Density of Spin Chirality" K. Ueda, S. Iguchi, T. Suzuki, S. Ishiwata, Y. Taguchi, and Y. Tokura,
Phys. Rev. Lett., 108, 156601 (2012) .
[841] "Optical investigation of metal-insulator transitions in V1-xWxO2 (0 ?? x ?? 0.33)" J. S. Lee, K. Shibuya, M. Kawasaki, and Y. Tokura,
Phys. Rev. B, 85, 155110 (2012) .
[840] "Observation of Skyrmions in a Multiferroic Material" S. Seki, X. Z. Yu, S. Ishiwata, and Y. Tokura,
Science, 336, 198 (2012) .
[839] "Emergent electromagnetism in solids" N. Nagaosa, and Y. Tokura,
Phys. Scr., T146, 14020 (2012) .
[838] "Ferroelectricity and Pressure-Induced Phenomena Driven by Neutral Ionic Valence Instability of Acid-Base Supramolecules" R. Kumai, S. Horiuchi, J. Fujioka, and Y. Tokura,
J. Am. Chem. Soc., 134, 1036-1046 (2012) .
[837] "Subband Structure of a Two-Dimensional Electron Gas Formed at the Polar Surface of the Strong Spin-Orbit Perovskite KTaO3" P. D. C. King, R. H. He, T. Eknapakul, P. Buaphet, S.-K. Mo, Y. Kaneko, S. Harashima, Y. Hikita, M. S. Bahramy, C. Bell, Hussain, Y. Tokura, Z.-X. Shen, H.Y. Hwang, F. Baumberger, and W. Meevasana,
Phys. Rev. Lett., 108, 117602 (2012) .
[836] "Charge-gap formation in the insulating states of AV10O15 (A = Ba, Sr)" M. Hoshino, T. Kajita, T. Kanzaki, M. Uchida, Y. Tokura, and T. Katsufuji,
Phys. Rev. B., 85, 85106 (2012) .
[835] "Band-filling dependence of thermoelectric properties in B20-type CoGe" N. Kanazawa, Y. Onose, Y. Shiomi, S. Ishiwata, and Y. Tokura
Appl. Phys. Lett., 100, 93902 (2012) .
[834] "Hall Effect of Spin-Chirality Origin in a Triangular-Lattice Helimagnet Fe1.3Sb" Y. Shiomi, M. Mochizuki, Y. Kaneko, and Y. Tokura
Phys. Rev. Lett., 108, 056601 (2012) .
[833] "Imaging of 3d Mn orbitals in the ferromagnetic state for Ca-substituted manganite: Magnetic Compton investigation" C. Rumble, M. Itou, N. Hiraoka, Y. Sakurai, Y. Tomioka, Y. Tokura, J. E. Penner-Hahn, and A. Deb
Phys. Rev. B., 85, 045128 (2012) .
[832] "Emergent phenomena at oxide interfaces" H. Y. Hwang, Y. Iwasa, M. Kawasaki, B. Keimer, N. Nagaosa, and Y. Tokura
Nat. Mat., 11, 103 (2012) .
[831] "Photocarrier collection from depletion layer of LaMnO3" J. Fujioka, M. Nakamura, M. Kawasaki and Y. Tokura
J. Appl. Phys., 111, 016107 (2012) .
[830] "Origin of the Large Polarization in Multiferroic YMnO3 Thin Films Revealed by Soft- and Hard-X-Ray Diffraction" H. Wadati, J. Okamoto, M. Garganourakis, V. Scagnoli, U. Staub, Y. Yamasaki, H. Nakao, Y. Murakami, M. Mochizuki, M. Nakamura, M. Kawasaki and Y. Tokura
Phys. Rev. Lett., 108, 047203 (2012) .
[829] "Insulator-metal transition driven by change of doping and spin-orbit interaction in Sr2IrO4" J. S. Lee, Y. Krockenberger, K. S. Takahashi, M. Kawasaki and Y. Tokura
Phys. Rev. B., 85, 035101 (2012) .