Journal of Materials Science

, Volume 52, Issue 13, pp 8200–8206 | Cite as

Divalent nickel-doped cubic magnesium oxide for spin qubit application

Original Paper


We reported optical, defect levels and spin coherence properties of NiMg 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 NiMg 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 NiMg 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 NiMg centers in MgO.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Key Laboratory of Polar Materials and Devices, Ministry of Education of ChinaEast China Normal UniversityShanghaiPeople’s Republic of China
  2. 2.Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghaiChina

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