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T. Kanzaki, R. Kubota, and T. Katsufuji “Change of phonon Raman spectra with V trimerization in BaV10O15”, Phys. Rev. B 85, 144410 (2012). M. Hoshino, T. Kajita, T. Kanzaki, M. Uchida, Y. Tokura, and T. Katsufuji, “Charge-gap formation in the insulating states of AV10O15 (A = Ba, Sr)”, Phys. Rev. B 85, 085106 (2012). W. Kobayashi, D. Sawaki, T. Omura, T. Katsufuji, Y. Moritomo, and I. Terasaki, “Thermal Rectification in the Vicinity of a Structural Phase Transition”, Appl. Phys. Express 5, 027302(2012)
A. Nogami, K. Takubo, T. Kajita, M. Hoshino, and T. Katsufuji, “Dynamics of photoinduced phenomena in AV10O15 (A = Ba, Sr)”, Phys. Rev. B 84, 214442 (2011). K. Takubo, R. Kubota, T. Suzuki, T. Kanzaki, S. Miyahara, N. Furukawa, and T. Katsufuji, “Evolution of phonon Raman spectra with orbital ordering in spinel MnV2O4”, Phys. Rev. B 84, 094406 (2011). Y. Shimizu, K. Matsudaira, M. Itoh, T. Kajita, and T. Katsufuji, “Spin-singlet trimer state induced by competing orbital order in triangular-lattice BaV10O15”, Phys. Rev. B 84, 064421 (2011). M. Ikeda, T. Okuda, K. Kato, M. Takata, and T. Katsufuji, “Competition between vanadium tetramerization and trimerization in Ba1-xSrxV13O18”, Phys. Rev. B 83, 134417 (2011) . T. Saitoh , H. Iwasawa, K. Kurahashi, Y. Nakano, T. Katsufuji, I. Hase, K. Shimada, H. Namatame, and M. Taniguchi, “Spin-doping effect on the electronic structure of Sr1-(x+y)Lax+yTi1-xCrxO3”, J. Electron Spectroscopy and Related Phenomena 184, 232 (2011). K.Kobayashi and T. Katsufuji, “High-temperature interlayer magnetoresistance in La5Mo4O16”, Phys. Rev. B 83, 100411(R) (2011) . Kim Myung-Whun, J. S. Kim, T. Katsufuji, and R. K. Kremer, “Magnetic susceptibility and specific heat of a spinel MnV2O4 single crystal”, Phys. Rev. B 83, 024403 (2011) .
Y.-S. Song, Li Qin Yan, Bumsung Lee, Sae Hwan Chun, Kee Hoon Kim, Sung Baek Kim, A. Nogami, T. Katsufuji, J. Schefer and J.-H. Chung, “Chemical doping-induced flop of ferroelectric polarization in multiferroic Mn0.9Co0.1WO4”, Phys. Rev. B 82, 214418 (2010) . M. Ikeda, Y. Nagamine, S. Mori, J. E. Kim, K. Kato , M. Takata, and T. Katsufuji, “Phase transitions and the role of vanadium t2g states in AV13O18 (A=Sr,Ba)”, Phys. Rev. B 82, 104415 (2010) . K. Takubo, M. Shimuta, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji, “Crossover behavior of the crystal structure and the relation to magnetism in perovskite RTiO3” , Phys. Rev. B 82, 020401(R) (2010) . J. Miyazaki, K. Matsudaira, Y. Shimizu, M. Itoh, Y. Nagamine, S. Mori, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji, “Formation of a Three-Dimensional Network of V Trimers in A2V13O22 (A=Ba, Sr)” , Phys. Rev. Lett. 104, 207201(2010). V. V. Shvartsman, P. Borisov, W. Kleemann, S. Kamba ,and T. Katsufuji, “Large off-diagonal magnetoelectric coupling in the quantum paraelectric antiferromagnet EuTiO3” , Phys. Rev. B 81, 064426 (2010). T. Kajita, T. Kanzaki, T. Suzuki, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji, “Opening of a charge gap with V trimerization in BaV10O15”, Phys. Rev. B 81, 060405(R) (2010). S. H. Lee, H. Takagi, D. Louca, M. Matsuda, S. Ji, H. Ueda, Y. Ueda, T. Katsufuji, S. W. Cheong, et al. “Frustrated Magnetism and Cooperative Phase Transitions in Spinels”, J. Phys. Soc. Jpn. 79, (1) 011004 (2010). J. Masuzawa, Y. Saiki, T. Suzuki, and T. Katsufuji, “Study of Dynamics in Inhomogeneous States by Temperature-Modulated Optical Reflectivity Measurement: Application to Perovskite Manganites”, J. Phys. Soc. Jpn. 79, (1) 014704 (2010).
H. Iwasawa, S. Kaneyoshi, K. Kurahashi, T. Saitoh, I. Hase, T. Katsufuji, K. Shimada, H. Namatame, and M. Taniguchi, “Electronic structure of Sr0.8-yLa0.2+yTi0.8Cr0.2O3 studied by photoemissionspectroscopy and first-principles band structure calculations ”， Phys. Rev. B 80, (12) 125122 (2009). A. Kato, Y. Uesu, and T. Katsufuji, “Optical Study of the Accumulated Charge in the Amorphous InGaZnO4 Thin-Film Transistor”, J. Phys. Soc. Jpn. 78, (9) 093706 (2009). J. Miyazaki, T. Sonehara, D. Akahoshi, H. Kuwahara, J. E. Kim, K. Kato, M. Takata, and T. Katsufuji, “Impact of orbital degrees of freedom on geometrical frustration in the kagome-like magnet SrVxGa12-xO19”, Phys. Rev. B 79, (18) 180410(R) (2009). K. Azumi, K. Aoyama, S. Asanuma, Y. Uesu, and T. Katsufuji, “Direct observation of a repeatable change in electronic states with applied electric voltage pulses in the metal-insulator-metal structure”, Phys. Rev. B 79, (12) 121101(R) (2009).
A. Nogami, T. Suzuki, and T. Katsufuji, “Second Harmonic Generation from Multiferroic MnWO4”, J. Phys. Soc. Jpn. 77, (11) 115001 (2008). Y. Shimizu, M. Tanaka, M. Itoh, and T. Katsufuji, “Spin-singlet formation in the geometrically frustrated spinel oxide AlV2O4: 51V and 27Al NMR measurements”, Phys. Rev. B 78, (14) 144423 (2008). T. Suzuki, and T. Katsufuji, “Magnetodielectric properties of spin-orbital coupled system Mn3O4”, Phys. Rev. B 77, (22) 220402(R) (2008).
H. Takei, T. Suzuki, and T. Katsufuji, “Nonvolatile memory effect of capacitance in polycrystalline spinel vanadate”, Appl. Phys. Lett. 91, (7) 072506 (2007). S. Kaneyoshi, H. Iwasawa, T. Saitoh, Y. Aiura, D. Satoh, T. Katsufuji, I. Hase, M. Higashiguchi, K. Shimada, H. Namatame, et al. “Independent control of charge and spin density in Sr1-(x+y) Lax+yTi1-xCrxO3 probed by photoemission spectroscopy”, J. Mag. Mag. Mat. 310, e278-e280 (2007). I. Hase, T. Saitoh, and T. Katsufuji, “Ab initio calculation of charge- and spin-controlled Sr1-x-yLax+yTi1-xCrxO3”, J. Mag. Mag. Mat. 310, e281-e282 (2007). S. Mori, J. Tokunaga, Y. Horibe, T. Asada, Y. Koyama, and T. Katsufuji, “Doping Effect on Ferroelectric Microstructure in YMn1 - xTixO3 ”, Ferroelectrics 348, 572-578 (2007). T. Suzuki, M. Katsumura, K. Taniguchi, T. Arima, and T. Katsufuji, “Orbital Ordering and Magnetic Field Effect in MnV2O4”, Phys. Rev. Lett. 98, (12) 127203 (2007). T. Suzuki, K. Adachi and T. Katsufuji, “Correlation between magnetic, dielectric properties and crystal structure in MnT2O4 (T=V, Cr, Mn)”, J. Mag. Mag. Mat.310, 780-781 (2007).
T. Nomura, J. Masuzawa, and T.Katsufuji, “Dynamical specific heat of two-phase coexistence in RMnO3”, Phys. Rev. B 74, (22) 220403(R) (2006). T. Sonehara, K. Kato, K. Osaka, M. Takata, and T. Katsufuji, “Transport, magnetic, and structural properties of spinel MnTi2O4 and the effect of V do ping”, Phys. Rev. B 74, (10) 104424 (2006). T. Katsufuji, K. Adachi, T. Suzuki, and M. Katsumura, “Magnetic-field switching of crystal structure in spinel MnV2O4”, Physica B 383, (1) 13-15 (2006). K. Waku, T. Suzuki, and T. Katsufuji, “Spin-dependent charge dynamics of an orbital-spin-coupled system: Yb2V2O7”, Phys. Rev. B 74, (2) 024402 (2006). Y. Horibe, M. Shingu, K. Kurushima, H. Ishibashi, N. Ikeda, K. Kato, Y. Motome, N. Furukawa. S. Mori, and T. katsufuji, “Erratum：Spontaneous formation of vanadium "molecules" in a geometrically frustrated crystal: AlV2O4 (vol 96, pg 086406, 2006)”, Phys. Rev. Lett. 96, (16) 169901 (2006). M. Hamaguchi, K. Aoyama, S. Asanuma, Y. Uesu, and T. Katsufuji, “Electric-field-induced resistance switching universally observed in transition-metal-oxide thin films”, Appl. Phys. Lett. 88, (14)142508 (2006). Y. Horibe, M. Shingu, K. Kurushima, H. Ishibashi, N. Ikeda, K. Kato, Y. Motome, N. Furukawa, S. Mori, and T. Katsufuji, “Spontaneous formation of vanadium "molecules" in a geometrically frustrated crystal: AlV2O4”, Phys. Rev. Lett. 96, (8)086406 (2006). H. Iwasawa, K. Yamakawa, T. Saitoh, J. Inaba, T. Katsufuji, M. Higashiguchi, K. Shimada, H. Namatame, and M. Taniguchi, “Electronic structure of charge- and spin-controlled Sr1-(x+y)Lax+yTi1-xCrxO3 ”, Phys. Rev. Lett. 96, 067203 (2006).
S. Mori, J. Tokunaga, Y. Horibe, Y. Aikawa, and T. Katsufuji, “Magnetocapacitance effect and related microstructure in Ti-doped YMnO3” , Phys. Rev. B 72, 224434 (2005) K. Adachi, T. Suzuki, K. Kato, K. Osaka, M. Takata, and T. Katsufuji, "Magnetic-field switching of crystal structure in an orbital-spin-coupled system: MnV2O4", Phys. Rev. Lett. 95, 197202 (2005). S. Mori, J. Tokunaga, Y. Horibe, Y. Aikawa, and T. Katsufuji, “Structural Phase Transition and Domain Structurres in YMn1-ｘTixO3”, Jpn. J. Appl. Phys. 44, 7174-7176 (2005). J. Inaba, and T. Katsufuji, “Large magnetoresistance in spin- and carrier-doped SrTiO3”, Phys. Rev. B 72, 052408 (2005). K. Waku, T. Suzuki, T. Nomura, and T. Katsufuji, “Dynamics of the charge-spin interplay in a perovskite manganite”, Phys. Rev. B 72, 012418 (2005). Y. Aikawa, T. Katsufuji, T. Arima, and K. Kato, “Effect of Mn trimerization on the magnetic and dielectric properties of hexagonal YMnO3”, Phys. Rev. B 71, 184418 (2005). A. Sekiyama, T. Sasabayashi, A. Higashiya, H. Fujiwara, S. Imada, K. Taniguchi, H. Takagi, T. Katsufuji, K. Kitazawa, and S. Suga, “Soft X-ray photoemission studyl of CaB6”, J. Electron Spectroscopy and Related Phenomena 144, 659-661 (2005). Y. Horibe, K. Kurushima, S. Mori, T. Asada, Y. Koyama, M. Shingu, and T. Katsufuji, “Doping effect on the charge ordering in AlV2O4”, Phys. Rev. B 71, 052411 (2005). T. Suzuki, Y. Aikawa,and T. Katsufuji, “Magnetocapacitance in geometrically frustrated magnet ZnFe2O4”, J. Phys. Soc. Jpn. 74, 863-866 (2005). S. Mori, Y. Horibe, and T. Katsufuji, “Ferroelectric domains in hexagonal YMnO3”, J. Korean Phys. Soc. 46, 37-39 (2005).
K. Waku, T. Katsufuji, Y. Kohsaka, T. Sasagawa, H. Takagi, H. Kishida, H. Okamoto, M. Azuma, and M. Takano. “Charge dynamics of Ca2-xNaxCuO2Cl2 as a correlated electron system with the ideal tetragonal lattice”, Phys. Rev. B, 70, 134501 (2004). K. Taniguchi, T. Katsufuji, S. Iguchi, Y. Taguchi, H. Takagi, and Y. Tokura, “Raman study of the metal-insulator transition in pyrochlore Mo oxides”, Phys. Rev. B, 70, 100401 (2004). K. Aoyama, K. Waku, A. Asanuma, Y. Uesu, and T. Katsufuji, “Electric-pulse-induced reflectance change in the thin film of perovskite manganite”, Appl. Phys. Lett. 85, 1208 (2004). W. Kobayashi, I. Terasaki, M. Mikami, R. Funahashi, T. Nomura, and T. Katsufuji, “Universal charge transport of the Mn oxides in the high temperature limit”, J. Appl. Phys, 95, 6825 (2004). T. Katsufuji, and H. Takagi, “Magnetocapacitance and spin fluctuations in the geometrically frustrated magnets R2Ti2O (R = rare earth)”, Phys. Rev. B 69, 064422 (2004).
T. J. Sato, S. H. Lee, T. Katsufuji, M. Masaki, S. Park, J. R. D. Copley, and H. Takagi, “Unconventional spin fluctuations in the hexagonal antiferromagnet YMnO3”, Phys. Rev. B 68, 014432 (2003). Y. Oohara, R. Kajimoto, T. Kakeshita, H. Yoshizawa, T. Tanabe, T. katsufuji, K. Ishizaka, Y. Taguchi, and Y. Tokura, “Neutron scattering study of the charge and the magnetic ordering in La2-xSrxNiO4”,
Physica B. 329, 725-726 (2003). K. Matsuno, T. Katsufuji, S. Mori, M. Nohara, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Kitazawa, and H. Takagi, “Charge ordering and spin frustration in AlV2-xCrxO4”, Phys. Rev. Lett. 90, 096404 (2003). S. Mori, R. Shoji, N. Yamamoto, T. Asaka, Y. Matsui, A. Machida, Y. Moritomo, and T. Katsufuji, “Microscopic phase separation and ferromagnetic microdomains in Cr-doped Nd0.5Ca0.5MnO3”, Phys. Rev. B 67, 012403 (2003). K. Yamamoto, K. Ishizaka, E. Saitoh, S. Shinomori, T. Tanabe, T. Katsufuji, and Y. Tokura, “Optical probe of charge-spin-lattice dynamics in half-doped La1.5Sr0.5NiO4”, Phys. Rev. B 67, 014414 (2003).
R. Kajimoto, T. Kakeshita, H. Yoshizawa, T. Tanabe, T. Katsufuji, and Y. Tokura, “Stripe order in highly doped La2-xSrxNiO4 ”, Appl. Phys. A ：Materials Science & Processing 74, 1765-1769 Part 2 Suppl. S (2002). T. Katsufuji, M. Masaki, A. Machida, M. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, K. Kitazawa, and H. Takagi, “Crystal structures and magnetic properties of hexagonal RMnO3 (R=Y, Lu, and Sc) and the effect of doping”, Phys. Rev. B 66, 134434 (2002). K. Taniguchi, T. Katsufuji, F. Sakai, H. Ueda, K. Kitazawa, and H. Takagi, “Charge dynamics and the possibility of ferromagnetism in A1-xLaxB6 (A=Ca and Sr)”, Phys. Rev. B 66, 064407 (2002). S. Mori, R. Shoji, N. Yamamoto, A. Machida, Y. Moritomo and T. Katsufuji, “Charge ordered state in the impurity-doped manganites”, J. Phys. Soc. Jpn 71, 1280 (2002). T. Yoshida , A. Ino, T. Mizokawa, A. Fujimori , Y. Taguchi, T. Katsufuji, and Y. Tokura, “Photoemission spectral weight transfer and mass renormalization in the Fermi-liquid system La1-xSrxTiO3+y/2”, Europhy. Lett. 59, 258-264 (2002). S. Spalter, H. Y. Hwang, J. Zimmermann, G. Lenz, T. Katsufuji, S-W. Cheong, and R. E. Slusher, “Strong self-phase modulation in planar chalcogenide glass waveguides”, Optics Letters 27, 363-365 (2002). A. Machida, Y. Moritomo, K. Ohoyama, T. Katsufuji, and A. Nakamura, “Phase separation and ferromagnetic transition in B-site substituted Nd1/2Ca1/2MnO3” , Phys. Rev. B 65, (6) 064435 (2002).
T. Katsufuji, and H. Takagi, “Coupling between magnetism and dielectric properties in quantum paraelectric EuTiO3”, Phys. Rev. B 64, 054415 (2001). T. Katsufuji, S. Mori, M. Masaki, Y. Moritomo, N. Yamamoto, and H. Takagi, “Dielectric and magnetic anomalies and spin frustration in hexagonal RMnO3 (R=Y, Yb, and Lu)”, Phys. Rev. B 64, 104419 (2001). K. Matsuno, T. Katsufuji, S. Mori, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, N. Yamamoto, and H. Takagi, “Charge ordering in the geometrically frustrated spinel AlV2O4”, J. Phys. Soc. Jpn. 70, 1456-1459 (2001). T. Katsufuji and Y. Tokura, “Coexistence of two components in the optical spectra of CeTiO3.04 in the antiferromagnetic metallic phase”, Phys. Rev. B 62, 10797-10801 (2000). T. Katsufuji, H. Y. Hwang, and S-W. Cheong, “Anomalous magnetotransport properties of R2Mo2O7 near the magnetic phase boundary”, Phys. Rev. Lett. 84, 1998-2001 (2000). T. Katsufuji, and Y. Tokura, “Transport and magnetic properties of a ferromagnetic metal: Eu1-xRxTiO3”, Phys. Rev. B 60, R15021-R15023 (1999). T. Katsufuji and Y. Tokura, “Frequency and temperature dependence of conductivity for perovskite titanates”, Phys. Rev. B 60, 7673-7676 (1999). T. Katsufuji, T. Tanabe, T. Ishikawa, S. Yamanouchi, Y. Tokura, T. Kakeshita, R. Kajimoto, and H. Yoshizawa, “Commensurability effect on the charge ordering of La2-xSrxNiO4”, Phys. Rev. B 60, R5097-R5100 (1999). T. Katsufuji, S-W. Cheong, S. Mori, and C. H. Chen, “Impurity effects on the electronic/magnetic ground states of perovskite manganites”, J. Phys. Soc. Jpn. 68, 1090-1093 (1999). K. Yamamoto, T. Katsufuji, T. Tanabe, and Y. Tokura, “Raman scattering of the charge-spin stripes in La1.67Sr0.33NiO4”, Phys. Rev. Lett. 80, 1493-1496 (1998). T. Katsufuji, Y. Taguchi, and Y. Tokura, “Transport and magnetic properties of a Mott-Hubbard system whose bandwidth and band-filling are both controllable: R1-xCaxTiO3+y/2”, Phys. Rev. B 56, 10145-10153 (1997). T. Katsufuji, T. Tanabe, T. Ishikawa, Y. Fukuda, T. Arima, and Y. Tokura, “Optical spectroscopy of the charge-ordering transition in La1.67Sr0.33NiO4”, Phys. Rev. B 54, R14230-R14233 (1997). Y. Okimoto, T. Katsufuji, T. Ishikawa, T. Arima, and Y. Tokura, “Variation of electronic structure in La1-xSrxMnO3 (0<x<0.3) as investigated by optical conductivity spectra”, Phys. Rev. B 55, 4206-4214 (1997). T. Katsufuji, M. Kasai, and Y. Tokura, “In-plane and out-of-plane optical spectra of Sr2RuO4”, Phys. Rev. Lett. 76, 126-129 (1996). T. Katsufuji, Y. Okimoto, and Y. Tokura, “Spectral weight transfer of the optical conductivity in doped Mott insulators”, Phys. Rev. Lett. 75, 3497-3500 (1995). Y. Okimoto, T. Katsufuji, T. Ishikawa, A. Urushibara, T. Arima, and Y. Tokura, “Anomalous variation of optical spectra with spin polarization in double-exchange ferromagnet: La1-xSrxMnO3”, Phys. Rev. Lett. 75, 109-112 (1995). T. Katsufuji, Y. Okimoto, T. Arima, Y. Tokura, and J. B. Torrance, “Optical spectroscopy of the metal-insulator transition in NdNiO3”, Phys. Rev. B 51, 4830-4835 (1995). T. Katsufuji, and Y. Tokura, “Anomalous variation of phonon Raman intensities near the metal-to-Mott-insulator transition in titanium oxide system”, Phys. Rev. B 50, 2704-2707 (1994). T. Katsufuji, and Y. Tokura, “Electronic Raman scattering in filling-controlled metals: Sr1-xLaxTiO3”, Phys. Rev. B 49, 4372-4375 (1994). T. Katsufuji, Y. Tokura, T. Ido, and S. Uchida, “Symmetry-dependent electronic Raman scattering in La2-xSrxCuO4: Evidence for doping-induced change in k-space anisotropy of charge dynamics”, Phys. Rev. B 48, 16131-16134 (1993). Y. Moritomo, T. Katsufuji, and Y. Tokura, “Dielectric phase transition and symmetry change of constituent molecules in proton-deuteron mixed crystals of squaric acid”, J. Chem. Phys. 95, 2244-2251 (1991). |
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