Coherent manipulation of electron spins in the (Cu 3) spin triangle complex impregnated in nanoporous silicon

K. Y. Choi, Z. Wang, H. Nojiri, J. Van Tol, P. Kumar, P. Lemmens, B. S. Bassil, U. Kortz, N. S. Dalal

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Abstract

We report on coherent manipulation of electron spins in an antiferromagnetically coupled spin triangle (Cu 3-X) (X=As, Sb) impregnated in freestanding nanoporous silicon (NS) by using 240 GHz microwave pulses. Rabi oscillations are observed and the spin coherence time is found to be T 2=1066ns at 1.5 K. This demonstrates that the (Cu 3-X):NS hybrid material provides a promising scheme for implementing spin-based quantum gates. By measuring the spin relaxation times of samples with different symmetries and environments we give evidence that a spin chirality is the main decoherence source of spin triangle molecules.

Original languageEnglish
Article number067206
JournalPhysical Review Letters
Volume108
Issue number6
DOIs
Publication statusPublished - 2012 Feb 10

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Choi, K. Y., Wang, Z., Nojiri, H., Van Tol, J., Kumar, P., Lemmens, P., Bassil, B. S., Kortz, U., & Dalal, N. S. (2012). Coherent manipulation of electron spins in the (Cu 3) spin triangle complex impregnated in nanoporous silicon. Physical Review Letters, 108(6), [067206]. https://doi.org/10.1103/PhysRevLett.108.067206