Anomalous magnetic ordering in b -axis-oriented orthorhombic HoMn O3 thin films

T. H. Lin, C. C. Hsieh, H. C. Shih, C. W. Luo, T. M. Uen, K. H. Wu, J. Y. Juang, J. Y. Lin, C. H. Hsu, S. J. Liu

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22 Citations (Scopus)

Abstract

Orthorhombic HoMn O3 films with well-aligned crystallographic orientations were deposited on LaAl O3 (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.

Original languageEnglish
Article number132503
JournalApplied Physics Letters
Volume92
Issue number13
DOIs
Publication statusPublished - 2008 Apr 10

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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