Coherent magnetic semiconductor nanodot arrays

Yong Wang, Faxian Xiu, Ya Wang, Jin Zou, Ward P. Beyermann, Yi Zhou, Kang L. Wang

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

In searching appropriate candidates of magnetic semiconductors compatible with mainstream Si technology for future spintronic devices, extensive attention has been focused on Mn-doped Ge magnetic semiconductors. Up to now, lack of reliable methods to obtain high-quality MnGe nanostructures with a desired shape and a good controllability has been a barrier to make these materials practically applicable for spintronic devices. Here, we report, for the first time, an innovative growth approach to produce self-assembled and coherent magnetic MnGe nanodot arrays with an excellent reproducibility. Magnetotransport experiments reveal that the nanodot arrays possess giant magneto-resistance associated with geometrical effects. The discovery of the MnGe nanodot arrays paves the way towards next-generation high-density magnetic memories and spintronic devices with low-power dissipation.

Original languageEnglish
Article number134
JournalNanoscale Research Letters
Volume6
Issue number1
DOIs
Publication statusPublished - 2011 Jan

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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