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*; Tokunaga, Yusuke*; Kaneko, Yoshio*; Nakao, Akiko*; Nakao, Hironori*; Murakami, Yoichi*; Sugimoto, Kunihisa*; Takata, Masaki*; Yamauchi, Kunihiko*; Picozzi, S.*; Baron, A. Q. R.*; Arima, Takahisa*; Tokura, Yoshinori*

Perovskite-type manganites exhibit various interesting phenomena arising from complex interplay among spin, charge, orbital, and lattice degrees of freedom. As the respective examples, perovskite-type YMnO and Sr $_{1-x}$ BaMnO are discussed. In the YMnO, the ferroelectric lattice distortion associated with the -type spin order is observed for the first time. Displacement-type ferroelectricity with off-center magnetic ions is discovered for Sr $_{0.5}$ Ba $_{0.5}$ MnO, which shows both large polarization value and strong coupling between ferroelectricity and magnetism.

Language	:	English
Journal	:	Physica B; Condensed Matter
Volume	:	407
Number	:	11
Pages	:	p.1685 - 1688
Publication Year/Month	:	2012/06
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Paper URL	:	https://doi.org/10.1016/j.physb.2012.01.006
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Keywords	:	no keyword
Research Facility	:	SPring-8(大型放射光施設)
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Registration No. : AA20130445
JAEA Abstracts No. :
Paper Submission No. : 13286

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