Magnetoelectric Fe2TeO6 thin films

被引：26

作者：

Wang, Junlei ^{[1
]}

Santana, Juan A. Colon ^{[2
]}

Wu, Ning ^{[1
]}

Karunakaran, Chithra ^{[3
]}

Wang, Jian ^{[3
]}

Dowben, Peter A. ^{[1
]}

Binek, Christian ^{[1
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] Univ Nebraska, Dept Elect Engn, W Scott Engn Ctr, Lincoln, NE 68588 USA

[3] Univ Saskatchewan, Canadian Light Source, Saskatoon, SK S7N 2V3, Canada

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2014年 / 26卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

boundary polarization; magnetoelectric; XMCD-PEEM; antiferromagnetic domains; X-RAY-ABSORPTION; MANGANESE PEROVSKITES; PHASE-TRANSITION; SURFACE; SPECTROSCOPY; MOSSBAUER; MAGNETISM; CR2TEO6; XMCD;

D O I：

10.1088/0953-8984/26/5/055012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We demonstrate that Fe2TeO6 is a magnetoelectric antiferromagnet with voltage-controllable boundary magnetization. This provides experimental evidence of the theoretical prediction that boundary magnetization is a universal property of magnetoelectric antiferromagnets including boundary magnetization at a surface orthogonal to the polar direction. Highly (110) textured Fe2TeO6 thin films were grown by pulsed laser deposition, terminating in Te-O at the (110) surface due to a surface reconstruction. Magnetic dc susceptibility measurements of both Fe2TeO6 powder and thin film samples confirm antiferromagnetic long-range order. Finally, measurements of x-ray magnetic circular dichroism combined with photoemission electron microscopy (XMCD-PEEM) provide a lower bound to the spin and angular magnetic moment of the surface Fe ions.

引用

页数：10

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