Probing Dynamics of an Electron-Spin Ensemble via a Superconducting Resonator

被引：77

作者：

Ranjan, V. ^{[1
]}

de lange, G. ^{[1
]}

Schutjens, R. ^{[1
]}

Debelhoir, T. ^{[2
]}

Groen, J. P. ^{[1
]}

Szombati, D. ^{[1
]}

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

Klapwijk, T. M. ^{[1
]}

Hanson, R. ^{[1
]}

DiCarlo, L. ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

[2] ENS, ICFP, Dept Phys, F-75005 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 06期

关键词：

CROSS-RELAXATION; NITROGEN DEFECTS; DIAMOND; DEPENDENCE; TIMES;

D O I：

10.1103/PhysRevLett.110.067004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study spin relaxation and diffusion in an electron-spin ensemble of nitrogen impurities in diamond at low temperature (0.25-1.2 K) and polarizing magnetic field (80-300 mT). Measurements exploit field-controlled coupling of the ensemble to two modes of a transmission-line resonator. The observed temperature-independent spin relaxation time indicates that spin outdiffusion across the mode volume dominates over spin-lattice relaxation. Depolarization of one hyperfine-split subensemble by pumping of another indicates fast cross relaxation, with implications for the use of subensembles as independent quantum memories. DOI: 10.1103/PhysRevLett.110.067004

引用

页数：5

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