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Advanced Materials

Synthesis and Characteristics of a Phase-Change Magnetic Material

Authors

  • Wen-Dong Song,

    1. Data Storage Institute, Agency of Science, Technology and Research DSI Building, 5, Engineering Drive 1 Singapore 117608 (Singapore)
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  • Lu-Ping Shi,

    Corresponding author
    1. Data Storage Institute, Agency of Science, Technology and Research DSI Building, 5, Engineering Drive 1 Singapore 117608 (Singapore)
    • Data Storage Institute, Agency of Science, Technology and Research DSI Building, 5, Engineering Drive 1 Singapore 117608 (Singapore).
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  • Xiang-Shui Miao,

    1. Data Storage Institute, Agency of Science, Technology and Research DSI Building, 5, Engineering Drive 1 Singapore 117608 (Singapore)
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  • Chong-Tow Chong

    1. Data Storage Institute, Agency of Science, Technology and Research DSI Building, 5, Engineering Drive 1 Singapore 117608 (Singapore)
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  • This work was supported by grants from the Data Storage Institute, Singapore. The authors thank K. G. Lim, H. K. Lee, J. M. Li, W. J. Wang, H. X. Yang, and R. Zhao for their valuable participation and contributions to this study.

Abstract

A phase-change magnetic material is synthesized by doping the known Ge[BOND]Sb[BOND]Te phase-change material with Fe, and its properties are compared with the parent chalcogenide material (see figure). Besides different optical (reflectivity) and electrical properties in the amorphous and crystalline states, its magnetic properties are different in the two states; a fact that can be used to realize the fast control of ferromagnetism by phase change.

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