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.
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收藏
页数：10
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