Measurement and Control of Single Nitrogen-Vacancy Center Spins above 600 K

被引：257

作者：

Toyli, D. M. ^{[1
]}

Christle, D. J. ^{[1
]}

Alkauskas, A. ^{[1
,2
]}

Buckley, B. B. ^{[1
]}

Van de Walle, C. G. ^{[1
,2
]}

Awschalom, D. D. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW X | 2012年 / 2卷 / 03期

关键词：

DIAMOND; DYNAMICS; QUBITS; MICROSCOPY; COHERENCE; RESONANCE; ELECTRON; TIME;

D O I：

10.1103/PhysRevX.2.031001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the spin and orbital dynamics of single nitrogen-vacancy (NV) centers in diamond between room temperature and 700 K. We find that the ability to optically address and coherently control single spins above room temperature is limited by nonradiative processes that quench the NV center's fluorescence-based spin readout between 550 and 700 K. Combined with electronic structure calculations, our measurements indicate that the energy difference between the E-3 and (1)A(1) electronic states is approximately 0.8 eV. We also demonstrate that the inhomogeneous spin lifetime (T-2(*)) is temperature independent up to at least 625 K, suggesting that single NV centers could be applied as nanoscale thermometers over a broad temperature range.

引用

页数：7

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