Microscopic theory of spin-polarization coupling in multiferroic transition metal oxides

被引：274

作者：

Jia, Chenglong ^{[1
]}

Onoda, Shigeki ^{[2
]}

Nagaosa, Naoto ^{[3
,4
]}

Han, Jung Hoon ^{[5
,6
]}

机构：

[1] Korea Inst Adv Study, Sch Phys, Seoul 130012, South Korea

[2] Inst Phys & Chem Res, RIKEN, Wako, Saitama 3510918, Japan

[3] Univ Tokyo, Dept Appl Phys, CREST, Tokyo 1138656, Japan

[4] Natl Inst Adv Ind Sci & Technol, Correlated Elect Res Ctr, Tsukuba, Ibaraki 3058562, Japan

[5] Sungkyunkwan Univ, Dept Phys, BK21 Phys Res Div, Suwon 440746, South Korea

[6] Seoul Natl Univ, CSCMR, Seoul 151747, South Korea

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.76.144424

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic microscopic theory of magnetically induced ferroelectricity and lattice modulation is presented for various electron configurations of Mott-insulating transition metal oxides. The origin of polarization is classified as the spin-orbit interaction effective (i) within the magnetic t(2g) orbitals, (ii) between the t(2g) and e(g) orbitals, and (iii) within the ligand ion's p orbitals. Predictions for x-ray and neutron scattering experiments are proposed to clarify the microscopic mechanism of the spin-polarization coupling in different materials. Semiquantitative agreements with the multiferroic TbMnO3 are obtained.

引用

页数：7

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