Perovskite manganites hosting versatile multiferroic phases with symmetric and antisymmetric exchange strictions

被引：158

作者：

Ishiwata, Shintaro ^{[1
]}

Kaneko, Yoshio ^{[2
]}

Tokunaga, Yusuke ^{[2
]}

Taguchi, Yasujiro ^{[1
]}

Arima, Taka-hisa ^{[3
]}

Tokura, Yoshinori ^{[1
,4
]}

机构：

[1] RIKEN, ASI, Cross Correlated Mat Res Grp CMRG, Wako, Saitama 3510198, Japan

[2] RIKEN, JST, ERATO, Multiferro Project, Wako, Saitama 3510198, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[4] Univ Tokyo, Dept Appl Phys, JST, Multiferro Project,ERATO, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 10期

关键词：

MAGNETIC-STRUCTURES;

D O I：

10.1103/PhysRevB.81.100411

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Complete magnetoelectric (ME) phase diagrams of orthorhombic RMnO3 with and without magnetic moments on the R ions have been established. Three kinds of multiferroic ground states, the ab-cycloidal, the bc-cycloidal, and the collinear E-type phases, have been identified by the distinct ME responses. The electric polarization of the E-type phase dominated by the symmetric spin exchange (S-i center dot S-j) is more than ten times as large as that of the bc-cycloidal phase dominated by the antisymmetric one (S(i)xS(j)) and the ME response is enhanced near the bicritical phase boundary between these multiferroic phases of different origins. These findings may provide generic features of the magnetically induced multiferroics.

引用

页数：4

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