Transparent magnetic semiconductor with embedded metallic glass nano-granules

Na Chen, Hongping Li, Akihiko Hirata, Zhaochu Luo, Zhongchang Wang, Wenjian Liu, Bin Cui, Taro Hitosugi, Lin Gu, Xiaozhong Zhang, Xianmin Zhang, Cheng Song, Xiangrong Wang, Lijuan Zhang, Jiefeng Cao, Kazuyo Ohmura, Sergey V. Ketov, Kefu Yao, Mingwei Chen, Dmitri V. Louzguine-Luzgin

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

One central material issue in spintronics is the search for high temperature (above room temperature) magnetic semiconductors. We report on the formation of a transparent magnetic semiconductor with embedded ferromagnetic metallic glass nano-granules, showing a Curie temperature of ~ 600 K. Soft X-ray magnetic circular dichroism data verify its intrinsic room-temperature ferromagnetism. Owing to the unique structure of ferromagnetic nano-granules embedded in the host magnetic semiconductor, additional interfacial exchange anisotropy emerges and stabilizes the ferromagnetism. The magnetotransport measurements of the amorphous nanocomposite indicate that its anomalous Hall effect is dominated by the extrinsic mechanism of the side-jump due to the spin-dependent impurity.

Original languageEnglish
Pages (from-to)208-214
Number of pages7
JournalMaterials and Design
Volume132
DOIs
Publication statusPublished - 2017 Oct 15
Externally publishedYes

Keywords

  • Magnetic semiconductor
  • Metallic glasses
  • Nano-granules

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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