Formation of perfectly aligned nitrogen-vacancy-center ensembles in chemical-vapor-deposition-grown diamond (111)
Formation of perfectly aligned nitrogen-vacancy-center ensembles in chemical-vapor-deposition-grown diamond (111)
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DOI：
10.7567/apex.10.045501
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发表时间：
2017-04-01
影响因子：
2.3
通讯作者：
Iwasaki, Takayuki
中科院分区：
文献类型：
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作者：
Ozawa, Hayato;Tahara, Kosuke;Iwasaki, Takayuki
金刚石中的氮空位（NV）系综的选择性取向是获得高灵敏度磁传感器的重要技术。通过微波等离子体化学气相沉积在（111）衬底上生长掺氮金刚石，以进行高密度NV系综的选择性取向，产生沿[111]方向沿着完全取向的NV系综，其密度大于10（16）cm（-3），自旋弛豫时间为2 μ s。这样的对准导致与光学磁共振的高信号对比度，接近于用孤立的NV中心报告的典型值。这些结果表明，通过NV系综的选择性对准实现高灵敏度的可能性。(C)2017日本应用物理学会
Selectively aligning a nitrogen-vacancy (NV) ensemble in diamond is an important technique for obtaining a high-sensitivity magnetic sensor. Nitrogen-doped diamonds were grown on (111) substrates by microwave plasma chemical vapor deposition to perform the selective alignment of high-density NV ensembles, yielding perfectly aligned NV ensembles along the [111] direction with a density greater than 10(16) cm(-3) and a spin relaxation time of 2 mu s. Such alignment results in a high signal contrast with an optical magnetic resonance close to the typical value reported with an isolated NV center. These results indicate the possibility of achieving a high sensitivity through the selective alignment of NV ensembles. (C) 2017 The Japan Society of Applied Physics