標題: Anomalous magnetic ordering in b-axis-oriented orthorhombic HoMnO(3) thin films
作者: Lin, T. H.
Hsieh, C. C.
Shih, H. C.
Luo, C. W.
Uen, T. M.
Wu, K. H.
Juang, J. Y.
Lin, J. -Y.
Hsu, C. -H.
Liu, S. J.
電子物理學系
物理研究所
Department of Electrophysics
Institute of Physics
公開日期: 31-Mar-2008
摘要: Orthorhombic HoMnO(3) films with well-aligned crystallographic orientations were deposited on LaAlO(3)(110) single crystal substrates by using pulsed laser deposition. The nearly perfect b-axis-oriented films provide the opportunity of investigating the orientation-dependent physical property of this material. The temperature dependent magnetization evidently displays an antiferromagnetic ordering near 42 K, irrespective to the direction of applied field. Furthermore, the theoretically expected lock-in transition was clearly observed at around 30 K when field was applied along the c axis and was undetectable along the a and b axes. The 30 K transition was suppressed to 26 K when the applied field increased from 100 to 500 Oe. (C) 2008 American Institute of Physics.
URI: http://dx.doi.org/10.1063/1.2904649
http://hdl.handle.net/11536/9547
ISSN: 0003-6951
DOI: 10.1063/1.2904649
期刊: APPLIED PHYSICS LETTERS
Volume: 92
Issue: 13
結束頁: 
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