Optically detected nuclear quadrupolar interaction of N-14 in nitrogen-vacancy centers in diamond

Article

关键词: ECHO ENVELOPE MODULATION;    RESONANCE-SPECTROSCOPY;    MAGNETIC-RESONANCE;    TRIPLET-STATE;    COHERENT DYNAMICS;    RAMAN HETERODYNE;    ZERO-FIELD;    SPIN;    ELECTRON;    MAGNETOMETRY;   

DOI  :  10.1103/PhysRevB.89.205202

来源: SCIE

【 摘 要 】

We report sensitive detection of the nuclear quadrupolar interaction of the N-14 nuclear spin of the nitrogen-vacancy (NV) center using the electron spin-echo envelope modulation technique. We applied a weak transverse magnetic field to the spin system so that certain forbidden transitions became weakly allowed due to second-order effects involving the nonsecular terms of the hyperfine interaction. The weak transitions cause modulation of the electron spin-echo signal, and a theoretical analysis suggests that the modulation frequency is primarily determined by the nuclear quadrupolar frequency; numerical simulations confirm the analytical results and show excellent quantitative agreement with experiments. This is an experimentally simple method of detecting quadrupolar interactions, and it can be used to study spin systems with an energy structure similar to that of the NV center.

【 授权许可】

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