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Room temperature spin coherence in ZnO

S. Ghosh·V. Sih·W. H. Lau·D. D. Awschalom·S. -Y. Bae·S. Wang·S. Vaidya·G. Chapline
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Abstract

Time-resolved optical techniques are used to explore electron spin dynamics in bulk and epilayer samples of n-type ZnO as a function of temperature and magnetic field. The bulk sample yields a spin coherence time T2* of 20 ns at T = 30 K. Epilayer samples, grown by pulsed laser deposition, show a maximum T2* of 2 ns at T = 10 K, with spin precession persisting up to T = 280 K.

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S. Ghosh, V. Sih, W. H. Lau, D. D. Awschalom, S. -Y. Bae, S. Wang, S. Vaidya, G. Chapline. 2005-02-25. Room temperature spin coherence in ZnO. https://doi.org/10.1063/1.1946204

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