Observation of nonreciprocal magnetoelectric x-ray scattering in magnetite

被引：16

作者：

Matsubara, M ^{[1
]}

Shimada, Y

Arima, T

Taguchi, Y

Tokura, Y

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

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

[3] ERATO, Spin Superstruct Project, Japan Sci & Technol Corp, AIST Tsukuba Cent 4, Tsukuba, Ibaraki 3058562, Japan

[4] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

[5] CERC, Natl Inst AIST, Tsukuba, Ibaraki 3058562, Japan

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.72.220404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the observation of nonreciprocal magnetoelectric x-ray scattering (MEXS) in globally centrosymmetric crystal of magnetite (Fe3O4). At the (222) Bragg reflection, resonant MEXS was observed around the pre-edge region of Fe K absorption. This unique scattering, being distinct from conventional magnetic or charge scattering, originates from an interference between electric dipole and electric quadrupole E1-E2 transition matrix elements at the spinel A site with locally broken inversion symmetry (T-d). The present results imply the possible application of MEXS to a broad class of materials with locally lacking inversion symmetry.

引用

页数：4

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