Bipolar magnetic semiconductors: a new class of spintronics materials.

  title={Bipolar magnetic semiconductors: a new class of spintronics materials.},
  author={Xingxing Li and Xiaojun Wu and Zhenyu Li and Jinlong Yang and J. G. Hou},
  volume={4 18},
Electrical control of spin polarization is very desirable in spintronics, since electric fields can be easily applied locally, in contrast to magnetic fields. Here, we propose a new concept of bipolar magnetic semiconductors (BMS) in which completely spin-polarized currents with reversible spin polarization can be created and controlled simply by applying a gate voltage. This is a result of the unique electronic structure of BMS, where the valence and conduction bands possess opposite spin… Expand
Bipolar magnetic materials for electrical manipulation of spin-polarization orientation.
  • X. Li, Jinlong Yang
  • Materials Science, Medicine
  • Physical chemistry chemical physics : PCCP
  • 2013
A range of materials that have bipolar spin polarization, including bipolar half metals and bipolar magnetic semiconductors, are reviewed and their potential applications for creating, manipulating, and detecting spin-polarized carriers provide a promising future for electrically controllable spintronics devices. Expand
Robust two-dimensional bipolar magnetic semiconductors by defect engineering
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Proposal for a new class of materials: spin gapless semiconductors.
  • X. Wang
  • Medicine, Physics
  • Physical review letters
  • 2008
The concept of the spin gapless semiconductor in which both electron and hole can be fully spin polarized is proposed, and its possibility is presented on the basis of first-principles electronicExpand
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High-volume information-processing and communications devices are at present based on semiconductor devices, whereas information-storage devices rely on multilayers of magnetic metals and insulators.Expand