Magnetism-induced ferroelectric polarization in the c -axis-oriented orthorhombic HoMnO3 thin films

T. H. Lin, C. C. Hsieh, Chih-Wei Luo, Jiunn-Yuan Lin, C. P. Sun, H. D. Yang, C. H. Hsu, Ying-hao Chu, Kaung-Hsiung Wu, T. M. Uen, Jenh-Yih Juang

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11 引文 斯高帕斯(Scopus)

摘要

The magnetism-induced ferroelectricity in the E -type orthorhombic HoMn O 3 (o -HMO) films grown on Nb-doped and undoped SrTi O 3 (001) substrates was studied. The temperature dependent magnetization in these films evidently exhibits an antiferromagnetic ordering around 44 K and an anomalous second magnetic ordering along the c -axis near 35 K. Interestingly, at this anomalous transition temperature, an associated ferroelectric polarization was probed by the P-E hysteresis measurements, indicating the intimated coupling between the ferroelectric response and the reordering of Mn spins, which has never been disclosed previously by dielectric constant measurements.

原文English
文章編號103923
頁(從 - 到)1-4
頁數4
期刊Journal of Applied Physics
106
發行號10
DOIs
出版狀態Published - 15 11月 2009

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