Magnetic characterization of Bi2FeMnO6 film grown on (100) SrTiO3 substrate |
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| Authors: | Hongyang Zhao Hideo Kimura Zhenxiang Cheng Xiaolin Wang Kiyoshi Ozawa Takashi Nishida |
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| Institution: | 1. National Institute for Materials Science, Sengen 1‐2‐1, Tsukuba, 305‐0047, Japan;2. Institute for Superconducting and Electronics Materials, University of Wollongong, Innovation Campus, Fairy Meadow NSW, 2519, Australia;3. Graduate School of Materials Science, Nara Institute of Science and Technology, 8916‐5 Takayama‐Cho, Ikoma, Nara 630‐0101, Japan |
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| Abstract: | Single phase Bi2FeMnO6 films on (100) SrTiO3 substrate were fabricated using a pulsed laser deposition method through optimization of the preparation conditions. The magnetic moment is 0.30μB at 5 K in the magnetic field of 1 T, indicating that B site cations of Fe and Mn are disordered in the sample. The zero‐field‐cooling (ZFC) and field‐cooling (FC) magnetization curves measured from 2 K to 400 K coincide at 360 K. This is consistent with the observation that hysteresis disappears at 360 K, revealing the antiferromagnetic transition at this temperature. A spin‐glass‐like behaviour was observed at low temperature (～100 K) with a cusp of 25 K. Mn shows multiple valence states in the film. It is possibly because Mn2+ and Mn4+ could decrease the Jahn–Teller effect from Mn3+ in the film which results in less lattice distortion. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | pulsed laser deposition antiferromagnetism double perovskite oxides magnetic anisotropy thin films |
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