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Spin coherence in two-dimensional materials

delete2019-04-09
delete88
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OA
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M
Meng Ye
H
Hosung Seo
G
Giulia Galli *
DOI:10.1038/s41524-019-0182-3delete
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Abstract

Abstract

En 中文
Spin defects in semiconducting solids are promising platforms for the realization of quantum bits. At low temperature and in the presence of a large magnetic field, the central spin decoherence is mainly due to the fluctuating magnetic field induced by nuclear spin flip-flop transitions. Using spin Hamiltonians and a cluster expansion method, we investigate the electron spin coherence of defects in two-dimensional (2D) materials, including delta-doped diamond layers, thin Si films, MoS2, and h-BN. We show that isotopic purification is much more effective in 2D than in three-dimensional materials, leading to an exceptionally long spin coherence time of more than 30 ms in an isotopically pure monolayer of MoS2.
Keywords:
SINGLE-PHOTON EMISSION
QUANTUM
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Journal

npj Computational Materials cover
npj Computational Materials
IF:
11.9
Papers:
2.4K
Citations:
1.7W

Organization

U
university of chicago
Scholars:
4.4W
Papers: 3.7W
Citations: 80