Effects of compressive epitaxial strain in the b-axis on the magnetization response of orthorhombic HoMnO3 thin films

T. H. Lin, C. C. Hsieh, H. C. Shih, Chih-Wei Luo, T. M. Uen, Kaung-Hsiung Wu, Jiunn-Yuan Lin, C. H. Hsu, Jenh-Yih Juang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The orthorhombic phase HoMnO3 (o-HMO in Pbnm symmetry setting) thin films were prepared on LaAlO3(110) (LAO(110)) substrates by pulsed laser deposition. While for films grown on LAO(110) substrates, the compressive strain along the b-axis was resulted from the tensile strain in the a-c plane. The films provide the opportunity of investigating the effects of strain, hence lattice elasticity, on the physical properties of this material. For o-HMO films an antiferromagnetic ordering with TN∼42 K, irrespective to the direction of applied field was clearly observed. However, an additional magnetic ordering occurring around 26.4 K was observed when the field was applied along the c-axis of o-HMO. This transition, however, was absent when the field was applied along a- and b-axis. These results indicate that the second magnetic ordering observed along the c-axis could be more relevant to the Mn moments lying along the partially strained b direction of the o-HMO which has been theoretically expected to result in incommensurate- commensurate lock-in transition.

原文American English
文章編號042114
頁(從 - 到)1-4
頁數4
期刊Journal of Physics: Conference Series
150
發行號4
DOIs
出版狀態Published - 6 8月 2009

指紋

深入研究「Effects of compressive epitaxial strain in the b-axis on the magnetization response of orthorhombic HoMnO3 thin films」主題。共同形成了獨特的指紋。

引用此