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Magnetic properties and first-order magnetic phase transition in single crystal FeRh thin film

  • ICAM 2009
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Abstract

To understand the mechanism of first-order magnetic phase transition in ordered FeRh thin films, the magnetic properties and first-order antiferromagnetic (AFM)–ferromagnetic (FM) phase transition behavior of single-crystal FeRh thin film are investigated in detail. The first-order magnetic phase transition is seen at a temperature of around 120 °C during heating and 145 °C cooling processes in perpendicular direction. The M–H loops measured isothermally amidst the AFM–FM transition regime show an opening at high magnetic field, which indicate a reversible AFM–FM transition induced by magnetic field. The clusters of the FM phase nucleate in the AFM matrix heterogeneously and vice versa during the first-order phase transition and the mechanism of nucleation and growth kinetics of the first-order magnetic phase transition in ordered FeRh thin film is quite similar to that of the crystallization of solids described by the Avrami model.

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Acknowledgements

The present study was supported by National Natural Science Foundation of China (Grant No. 50901052). The authors also would like to thank the partial support from the Japanese Storage Research Consortium, the Grant-in-Aid for Scientific Research (A) (# 14205049) by the Japanese Ministry of Education, Culture, Sports, Science and Technology.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shanghai Key Laboratory of D&A for Metal-Functional Materials, Tongji University, 200092, Shanghai, China

    Wei Lu, Yuxin Wang & Biao Yan

  2. Information Storage Materials Laboratory, Toyota Technological Institute, Nagoya, Aichi, 468-8511, Japan

    Takao Suzuki

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  1. Wei Lu
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  2. Yuxin Wang
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  3. Biao Yan
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  4. Takao Suzuki
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Correspondence to Wei Lu.

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Lu, W., Wang, Y., Yan, B. et al. Magnetic properties and first-order magnetic phase transition in single crystal FeRh thin film. J Mater Sci 45, 4919–4923 (2010). https://doi.org/10.1007/s10853-010-4206-0

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