Persistent sourcing of coherent spins for multifunctional semiconductor spintronics

I. Malajovich, J. J. Berry, N. Samarth and D. D. Awschalom ()
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I. Malajovich: University of California
J. J. Berry: Pennsylvania State University
N. Samarth: Pennsylvania State University
D. D. Awschalom: University of California

Nature, 2001, vol. 411, issue 6839, 770-772

Abstract: Abstract Recent studies of n-type semiconductors have demonstrated spin-coherent transport over macroscopic distances1, with spin-coherence times exceeding 100 ns2,3; such materials are therefore potentially useful building blocks for spin-polarized electronics (‘spintronics’). Spin injection into a semiconductor (a necessary step for spin electronics4) has proved difficult5,6; the only successful approach involves classical injection of spins from magnetic semiconductors7,8. Other work has shown that optical excitation can provide a short (

Date: 2001
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DOI: 10.1038/35081014

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