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期刊论文

Magnetic anisotropy and anomalous transitions in TbMnO3 thin films

王荣明Yimin Cui Yufeng Tian Aixian Shan Chinping Chen and Rongming Wang

Applied Physics Letters,-0001,():

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摘要/描述

TbMnO3 thin films with different crystallographic orientations were deposited epitaxially on LaAlO3 [100] and SrTiO3 [100] single crystal substrates by using pulsed laser deposition. Magnetization measurements were performed along the [110], [_110], and [001] directions of the films. Obvious magnetic anisotropy and low temperature ferromagnetism were found. Transitions at T_10, 32, 120, and 125K along different directions are observed. The susceptibility anomalies, remarkably anisotropic, are discussed on the frame of the domain wall and strain-induced distortion. Particularly, the lattice mismatch and the anisotropic thermal expansion between the films and substrates are likely responsible for the distortion behaviors.

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版权说明:以下全部内容由王荣明上传于   2012年11月08日 09时24分34秒,版权归本人所有。

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