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Journal of Materials Science

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24-03-2017 | Original Paper

Divalent nickel-doped cubic magnesium oxide for spin qubit application

Authors: G. D. Cheng, L. Yan, Y. Chen

Published in: Journal of Materials Science | Issue 13/2017

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Abstract

We reported optical, defect levels and spin coherence properties of Ni_Mg center in MgO, which consists of a substitutional nickel atom in a magnesium site. Our study is based on the first-principles calculation and experimental analysis. The neutral of Ni_Mg center is stable in the p-type MgO. The defect center possesses a triplet ground state and is optically accessible. According to a mean-field-based scheme, the spin coherence time of neutral Ni_Mg center is estimated to be 0.33 s at T = 0 K. Moreover, it is confirmed that ion implantation at room temperature can be an efficient way to produce the neutral Ni_Mg centers in MgO.

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Title: Divalent nickel-doped cubic magnesium oxide for spin qubit application
Authors: G. D. Cheng
L. Yan
Y. Chen
Publication date: 24-03-2017
Publisher: Springer US
Published in: Journal of Materials Science / Issue 13/2017
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-017-1028-3

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