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Journal Articles

Emergent phenomena in perovskite-type manganites

Taguchi, Yasujiro*; Sakai, Hideaki*; Okuyama, Daisuke*; Ishiwata, Shintaro*; Fujioka, Jun*; Fukuda, Tatsuo; Hashizume, Daisuke*; Kagawa, Fumitaka*; Takahashi, Yoichiro*; Shimano, Ryo*; et al.

Physica B; Condensed Matter, 407(11), p.1685 - 1688, 2012/06

 Times Cited Count:3 Percentile:82.88(Physics, Condensed Matter)

Journal Articles

Colossal negative thermal expansion in BiNiO$$_{3}$$ induced by intermetallic charge transfer

Azuma, Masaki*; Chen, W.*; Seki, Hayato*; Czapski, M.*; Olga, S.*; Oka, Kengo*; Mizumaki, Masaichiro*; Watanuki, Tetsu; Ishimatsu, Naoki*; Kawamura, Naomi*; et al.

Nature Communications (Internet), 2, p.347_1 - 347_5, 2011/06

 Times Cited Count:263 Percentile:1.12(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Multiferroic $$M$$-type hexaferrites with a room-temperature conical state and magnetically controllable spin helicity

Tokunaga, Yusuke*; Kaneko, Yoshio*; Okuyama, Daisuke*; Ishiwata, Shintaro*; Arima, Takahisa*; Wakimoto, Shuichi; Kakurai, Kazuhisa; Taguchi, Yasujiro*; Tokura, Yoshinori*

Physical Review Letters, 105(25), p.257201_1 - 257201_4, 2010/12

 Times Cited Count:216 Percentile:1.72(Physics, Multidisciplinary)

Journal Articles

Neutron diffraction studies on the multiferroic conical magnet Ba$$_{2}$$Mg$$_{2}$$Fe$$_{12}$$O$$_{22}$$

Ishiwata, Shintaro*; Okuyama, Daisuke*; Kakurai, Kazuhisa; Nishi, Masakazu*; Taguchi, Yasujiro*; Tokura, Yoshinori*

Physical Review B, 81(17), p.174418_1 - 174418_8, 2010/05

 Times Cited Count:64 Percentile:9.09(Materials Science, Multidisciplinary)

Journal Articles

Antiferromagnetic-to-ferromagnetic transition induced by diluted Co in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$:Magnetic circular X-ray dichroism study

Okamoto, Jun*; Mamiya, Kazutoshi*; Fujimori, Shinichi; Okane, Tetsuo; Saito, Yuji; Muramatsu, Yasuji*; Yoshii, Kenji; Fujimori, Atsushi*; Tanaka, Arata*; Abbate, M.*; et al.

Physical Review B, 71(10), p.104401_1 - 104401_5, 2005/03

 Times Cited Count:20 Percentile:35.81(Materials Science, Multidisciplinary)

The antiferromagnetic-to-ferromagnetic transition in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$ ($$x_c$$$$simeq$$0.15) induced by Co doping has been studied by magnetic circular X-ray dichroism. The orbital and spin magnetic moments of the Fe and Co 3$$d$$ states under the magenetic field of 2 T are found to show different $$x$$ dependences: The spin polarization of Fe 3$$d$$ gradually increases with Co concentration; On the other hand, a large spin polarization of Co 3$$d$$ is induced already in the antiferromagnetic phase, indicating that the Co moment is nearly fully alligned already in the antiferromagnetic phase. This suggests that the alignment of the Fe magnetic moment in SrFe$$_{1-x}$$Co$$_x$$O$$_3$$ is induced by interaction with doped Co magnetic moment. Possible formation of ferromagnetic Co rich region is discussed.

Journal Articles

Synthesis of materials under high pressure by means of synchrotron X-ray diffraction

Azuma, Masaki*; Saito, Takashi*; Niitaka, Seiji*; Ishiwata, Shintaro*; Kanda, Hiroaki*; Yamada, Ikuya*; Takano, Mikio*; Utsumi, Wataru

Kotai Butsuri, 38(2), p.141 - 150, 2003/02

no abstracts in English

Journal Articles

Single-crystal growth of transition metal oxides at high pressures of several GPa

Azuma, Masaki*; Saito, Takashi*; Ishiwata, Shintaro*; Yoshida, Hirofumi*; Takano, Mikio*; Kosaka, Yuki*; Takagi, Hidenori*; Utsumi, Wataru

Journal of Physics; Condensed Matter, 14(44), p.11321 - 11324, 2002/11

 Times Cited Count:7 Percentile:60.07(Physics, Condensed Matter)

no abstracts in English

Oral presentation

Polarized neutron diffraction studies on magnetic-field-induced ferroelectric phase in helimagnet Ba$$_{2}$$Mg$$_{2}$$Fe$$_{12}$$O$$_{22}$$

Ishiwata, Shintaro*; Okuyama, Daisuke*; Kakurai, Kazuhisa; Nishi, Masakazu*; Taguchi, Yasujiro*; Tokura, Yoshinori*

no journal, , 

no abstracts in English

Oral presentation

Neutron scattering activities on multiferroic systems; Neutron diffraction experiments on hexaferrites

Kakurai, Kazuhisa; Wakimoto, Shuichi; Ishiwata, Shintaro*; Okuyama, Daisuke*; Nishi, Masakazu*; Tokunaga, Yusuke*; Arima, Takahisa*; Taguchi, Yasujiro*; Tokura, Yoshiki*

no journal, , 

Oral presentation

Study of complex magnetic structures in frustrated magnets by means of polarized neutrons

Kakurai, Kazuhisa; Wakimoto, Shuichi; Matsuda, Masaaki*; Ishiwata, Shintaro*; Okuyama, Daisuke*; Taguchi, Yasujiro*; Tokura, Yoshiki*; Nishi, Masakazu*; Nakajima, Taro*; Mitsuda, Setsuo*; et al.

no journal, , 

Oral presentation

Observation of electromagnons in Y-type hexaferrite Ba$$_{2}$$Mg$$_{2}$$Fe$$_{12}$$O$$_{22}$$ by means of polarized inelastic neutron scattering

Nakajima, Taro*; Kakurai, Kazuhisa; Arima, Takahisa*; Matsuda, Masaaki*; Takahashi, Yoichiro*; Ishiwata, Shintaro*; Taguchi, Yasujiro*; Tokura, Yoshinori*

no journal, , 

no abstracts in English

11 (Records 1-11 displayed on this page)
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