Hydrogenation-induced strengthening of exchange bias coupling in antiferromagnetic Pd-rich alloy films

Bo Yao Wang, Chun Wei Shih, Ming Shian Tsai, Chia Ju Chen, Kai Lin, Jin Jhuan Li, Chun Wei Huang, Wen Chin Lin, Shih Chang Weng

研究成果: Article

1 引文 斯高帕斯(Scopus)

摘要

Hydrogenation has recently been proposed for use in modulating the magnetic properties of Pd-rich ferromagnetic (FM) alloy films. This study successfully fabricated Pd-rich Mn/MnPd/Fe antiferromagnetic/FM films with an established exchange bias field at RT, and determined that hydrogenation can enhance the exchange bias coupling in such films. Specifically, magnetic hysteresis loops revealed that the magnetic state of the Pd-rich Mn/MnPd/Fe films was gradually changed from an unbiased state to an exchange-biased state upon exposure to a hydrogen environment; moreover, hydrogenation engendered a larger magnitude of the exchange bias field than conventional field cooling. This phenomenon can be attributed to the enhanced long-range antiferromagnetic ordering of the Pd-rich MnPd film upon uptake of hydrogen atoms.

原文English
頁(從 - 到)223-229
頁數7
期刊Journal of Alloys and Compounds
748
DOIs
出版狀態Published - 2018 六月 5

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Wang, B. Y., Shih, C. W., Tsai, M. S., Chen, C. J., Lin, K., Li, J. J., Huang, C. W., Lin, W. C., & Weng, S. C. (2018). Hydrogenation-induced strengthening of exchange bias coupling in antiferromagnetic Pd-rich alloy films. Journal of Alloys and Compounds, 748, 223-229. https://doi.org/10.1016/j.jallcom.2018.03.121