Refereed papers in 1999

[289] "Resonant Photoemission Study of LaTiO3.04" M. Nakamura, T. Yoshida, K. Mamiya, A. Fujimori, Y. Taguchi, and Y. Tokura
Materials Science and Engineering B, 68, 123 (1999) .
[288] "Photoinduced Cooperative Charge Transfer in Low-Dimensional Organic Crystals" S. Koshihara, Y. Takahashi, H. Sakai, Y. Tokura, and T. Luty
Journal of Physical Chemistry B , 103, 2592 (1999) .
[287] "Colossal Magnetoresistive Manganites" Y. Tokura and Y. Tomioka
J. Magn. Magn. Mater., 200, 1 (1999) .
[286] "Persistent X-Ray Photoconductivity and Percolation of Metallic Clusters in Charge-Ordered Manganites" D. Casa, V. Kiryukhin, O. A. Saleh, B. Keimer, J. P. Hill, Y. Tomioka, and Y. Tokura
Europhys. Lett., 47, 90 (1999) .
[285] "Switching Behavior of Epitaxial Perovskite Manganite Thin Films" H. Oshima, K. Miyano, Y. Konishi, M. Kawasaki, and Y. Tokura
Appl. Phys. Lett., 75, 1473 (1999) .
[284] "Current-induced low-resistive state in organic Mott insulator ET-TCNQ" R. Kumai, and Y. Tokura,
Chem. Lett., 28, 765 (1999) .
[283] "Order-disorder transiton of nonplanar molecules and dielectric anomaly in a crystal of charge-transfer complex" S. Horiuchi, R. Kumai, Y. Okimoto, and Y. Tokura,
J. Am. Chem. Soc., 121, 6757 (1999) .
[282] "Spontaneous bubble domain formation in a layered ferromagnetic crystal" T. Fukumura, H. Sugawara, T. Hasegawa, K. Tanaka, H. Sakaki, T. Kimura, and Y. Tokura,
Science, 284, 1969 (1999) .
[281] "Diffuse phase transition and phase separation in Cr-doped Nd1/2Ca1/2MnO3: a relaxor ferromagnet" T. Kimura, Y. Tomioka, R. Kumai, Y. Okimoto, and Y. Tokura,
Phys. Rev. Lett., 83, 3940-3943 (1999) .
[280] "Magnetotransport phenomena in a metallic ferromagnet on the verge of Mott transition: Sm2Mo2O7" Y. Taguchi, and Y. Tokura,
Phys. Rev. B, 60, 10280-10283 (1999) .
[279] "Hole concentration induced transformation of the magnetic and orbital structure in Nd1-xSrxMnO3" R. Kajimoto, H. Yoshizawa, H. Kawano, H. Kuwahara, Y. Tokura, K. Ohoyama, and M. Ohashi,
Phys. Rev. B, 60, 9506-9517 (1999) .
[278] "Coherent-incoherent crossover of charge dynamics in the ferromagnetic ground state of manganites: R0.6Sr0.4MnO3 (R=La-Sm)" E. Saitoh, Y. Okimoto, Y. Tomioka, T. Katsufuji, and Y. Tokura,
Phys. Rev. B, 60, 10362-10366 (1999) .
[277] "Orbital-state-mediated phase-control of manganites" Y. Konishi, Z. Fang, M. Izumi, T. Manako, M. Kasai, H. Kuwahara, M. Kawasaki, K. Terakura, and Y. Tokura,
J. Phys. Soc. Jpn., 68, 3790-3793 (1999) .
[276] "Variation of charge-ordering transitions in R1/3Sr2/3FeO3 (R=La, Pr, Nd, Sm, and Gd)" S. K. Park, T. Ishikawa, and Y. Tokura,
Phys. Rev. B, 60, 10788-10795 (1999) .
[275] "Probing charge/orbital correlation in La1.2Sr1.8Mn2O7 by Raman spectroscopy" K. Yamamoto, T. Kimura, T. Ishikawa, T. Katsufuji, and Y. Tokura,
J. Phys. Soc. Jpn., 68, 2538-2541 (1999) .
[274] "Low-temperature transport properties in a bilayered manganite La1.3Sr1.7Mn2O7" T. Okuda, T. Kimura, and Y. Tokura,
Phys. Rev. B, 60, 3370-3374 (1999) .
[273] "Frequency and temperature dependence of conductivity for perovskite titanates" T. Katsufuji, and Y. Tokura,
Phys. Rev. B, 60, 7673-7676 (1999) .
[272] "Structure characterization and magnetic properties of oxide superlattices La0.6Sr0.4MnO3/La0.6Sr0.4FeO3" M. Izumi, Y. Murakami, Y. Konishi, T. Manako, M. Kawasaki, and Y. Tokura,
Phys. Rev. B, 60, 1211-1215 (1999) .
[271] "High field magnetizaiton process in R1/2Ca1/2MnO3 (R=Sm and Y) up to 100T" M. Tokunaga, N. Miura, Y. Tomioka, and Y. Tokura,
Phys. Rev. B, 60, 6219-6222 (1999) .
[270] "Effect of magnetic transitions and charge-ordering on crystal lattice in Nd0.5Sr0.5MnO3" S. Shimomura, K. Tajima, N. Wakabayashi, H. Kuwahara, and Y. Tokura,
J. Phys. Soc. Jpn., 68, 1943-1947 (1999) .
[269] "Action spectra of the two-stage photo-induced insulator-metal transition in Pr1-xCaxMnO3" M. Fiebig, K. Miyano, T. Saitoh, Y. Tomioka, and Y. Tokura,
Phys. Rev. B, 60, 7944-7949 (1999) .
[268] "Commensurability effect on the charge ordering of La2-xSrxNiO4" T. Katsufuji, T. Tanabe, T. Ishikawa, S. Yamanouchi, Y. Tokura, T. Kakeshita, R. Kajimoto, and H. Yoshizawa,
Phys. Rev. B, 60, R5097 (1999) .
[267] "Current-induced insulator-metal transition and pattern formation in an organic charge-transfer complex" R. Kumai, Y. Okimoto, and Y. Tokura,
Science, 284, 1645-1647 (1999) .
[266] "Effect of chemical doping on the ferroelectric neutral-ionic phase transition in tetrathiafulvalene-p-chloranil (TTF-QCl4)" S. Horiuchi, R. Kumai, Y. Okimoto, and Y. Tokura,
Phys. Rev. B, 59, 11267-11275 (1999) .
[265] "Photoinduced phase transformation in polythiophene" N. Hosaka, H. Tachibana, N. Shiga, M. Matsumoto, and Y. Tokura,
Phys. Rev. Lett., 82, 1672-1675 (1999) .
[264] "Intergrain tunneling magnetoresistance in polycrystals of the ordered double perovskite Sr2FeReO6" K. -I. Kobayashi, T. Kimura, Y. Tomioka, H. Sawada, K. Terakkura, and Y. Tokura,
Phys. Rev. B, 59, 11159-11162 (1999) .
[263] "Anomalous pseudogap formation in a nonsuperconducting crystal of Nd1.85Ce0.15CuO4+y: Implication of charge ordering" Y. Onose, Y. Taguchi, T. Ishikawa, S. Shinomori, K. Ishizaka, and Y. Tokura,
Phys. Rev. Lett., 82, 5120-5123 (1999) .
[262] "Electronic correlations on the verge of the Mott transition in La1-xSrxTiO3 by 47/49Ti and 139La nuclear magnetic resonance" Y. Furukawa, I. Okamura, K. Kumagai, T. Goto, T. Fukase, Y. Taguchi, and Y. Tokura,
Phys. Rev. B, 59, 10550-10558 (1999) .
[261] "Symmetry analysis of the fermi surface states of Sr2RuO4 by display-type photoelectron spectrosopy" T. Okuda, M. Kotsugi, K. Nakatsuji, M. Fujikawa, S. Suga, Y. Tezuka, S. Shin, M. Kasai, Y. Tokura, and H. Daimon,
J. Phys. Soc. Jpn., 68, 1398-1403 (1999) .
[260] "High-field magnetization and magnetoresistance of La0.5Sr1.5MnO4" M. Tokunaga, N. Miura, Y. Moritomo, and Y. Tokura,
Phys. Rev. B, 59, 11151-11154 (1999) .
[259] "Epitaxial thin films of ordered double perovskite Sr2FeMoO6" T. Manako, M. Izumi, Y. Konishi, K. -I. Kobayashi, M, Kawasaki, and Y. Tokura,
Appl. Phys. Lett., 74, 2215-2217 (1999) .
[258] "Optical response to orbital and charge ordering in a layered manganite: La1/2Sr3/2MnO4" T. Ishikawa, K. Ookura, and Y. Tokura,
Phys. Rev. B, 59, 8367-8370 (1999) .
[257] "Two-dimensional charge-transport and spin-valve effect in layered antiferromagnet Nd0.45Sr0.55MnO3" H. Kuwahara, T. Okuda, Y. Tomioka, A. Asamitsu, and Y. Tokura,
Phys. Rev. Lett., 82, 4316 (1999) .
[256] "Microscopically homogeneous magnetic structure of La1-xSrxMnO3 beyond the range of 0 K. Kumagai, A. Iwai, Y. Tomioka, H. Kuwahara, Y. Tokura, and A. Yakubovskii,
Phys. Rev. B, 59, 97-99 (1999) .
[255] "Optical study of Pr1-xCaxMnO3 (x=0.4) in a magnetic field: Variation of electronic structure with charge ordering and disordering phase transitions" Y. Okimoto, Y. Tomioka, Y. Onose, Y. Otsuka, and Y. Tokura,
Phys. Rev. B, 59, 7401-7408 (1999) .
[254] "Critical behavior in LaTiO3+\delta/2 in the vicinity of antiferromagnetic instability" Y. Taguchi, T. Okuda, M. Ohashi, C. Murayama, N. Mori, Y. Iye, and Y. Tokura,
Phys. Rev. B, 59, 7917-7924 (1999) .
[253] "Reflection spectroscopy on the photoinduced local metallic phase of Pr0.7Ca0.3MnO3" M. Fiebig, K. Miyano, Y. Tomioka, and Y. Tokura,
Appl. Phys. Lett., 74, 2310-2312 (1999) .
[252] "Ionic-to-neutral phase transformation induced by photoexcitation of the charge-transfer band in tetrathiafulvalene-p-chloranil crystals" T. Suzuki, T. Sakamaki, K. Tanimura, S. Koshihara, and Y. Tokura,
Phys. Rev. B, 60, 6191-6193 (1999) .
[251] "Crystal-field splitting and the on-site Coulomb energy of LaxSr1-xTiO3 from resonant soft-x-ray emission spectroscopy" T. Higuchi, T. Tsukamoto, M. Watanabe, M. M. Grush, T. A. Callcott, R. C. Perera, D. L. Ederer, Y. Tokura, Y. Harada, Y. Tezuka, and S. Shin,
Phys. Rev. B, 60, 7711-7714 (1999) .
[250] "Electronic states of charge-ordering Nd0.5Sr0.5MnO3 probed by photoemission" A. Sekiyama, S. Suga, M. Fujikawa, S. Imada, T. Iwasaki, K. Matsuda, T. Matsushita, K. V. Kaznacheyev, A. Fujimori, H. Kuwahara, and Y. Tokura,
Phys. Rev. B, 59, 15528-15532 (1999) .
[249] "X-ray diffuse scattering due to polarons in a colossal magnetoresistive manganaite" S. Shimomura, N. Wakabayashi, H. Kuwahara, and Y. Tokura,
Phys. Rev. Lett., 83, 4389-4392 (1999) .
[248] "Transport and magnetic properties of a ferromagnetic metal: Eu1-xLaxTiO3" T. Katsufuji and Y. Tokura,
Phys. Rev. B, 60, R15021-R15023 (1999) .
[247] "Interplay between charge, orbital, and magnetic order in Pr1-xCaxMnO3" M. v. Zimmermann, J. P. Hill, D. Gibbs, M. Blume, D. Casa, B. Keimer, Y. Murakami, Y. Tomioka, and Y. Tokura,
Phys. Rev. Lett., 83, 4872-4875 (1999) .
[246] "Dielectric breakdown of the insulating charge-ordered state in La2-xSrxNiO4" S. Yamanouchi, Y. Taguchi, and Y. Tokura,
Phys. Rev. Lett., 83, 5555-5558 (1999) .