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Letter

Nature Materials 8, 198–202 (1 March 2009) | doi:10.1038/nmat2385

Room-temperature defect-engineered spin filter based on a non-magnetic semiconductor

X. J. Wang , I. A. Buyanova , F. Zhao , D. Lagarde , A. Balocchi , X. Marie , C. W. Tu , J. C. Harmand & W. M. Chen

Generating, manipulating and detecting electron spin polarization and coherence at room temperature is at the heart of future spintronics and spin-based quantum information technology. Spin filtering, which is a key issue for spintronic applications, has been demonstrated by using ferromagnetic metals, diluted magnetic semiconductors, quantum point contacts, quantum dots, carbon nanotubes, multiferroics and so on.