Bipolar magnetic semiconductors: a new class of spintronics materials.

@article{Li2012BipolarMS,
  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},
  journal={Nanoscale},
  year={2012},
  volume={4 18},
  pages={
          5680-5
        }
}
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
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