在钻石生长过程中控制的度,以形成NV-中心
T Teraji1, C Shinei1, Y Masuyama2
1Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
概括
精确控制钻石中的度是量子传感器的关键. 无论是HPHT还是CVD方法都允许微调,影响NV中心连贯时间,以改善磁传感应用.
科学领域:
- 量子物理学的量子物理学
- 材料科学是一种材料科学.
- 固态物理 固态物理
背景情况:
- 钻石中的空 (NV-) 中心对于磁传感等量子技术至关重要.
- 为了达到高灵敏度,需要精确控制钻石晶体中的度.
研究的目的:
- 用高压/高温 (HPHT) 和化学蒸汽沉积 (CVD) 方法证明精确控制钻石中的度.
- 调查度与NV-中心的连贯时间之间的关系.
主要方法:
- 在使用或作为获取器的HPHT合成过程中控制的纳入.
- 在CVD过程中通过调整与碳流速比率来控制的纳入.
- 通过电子束辐射形成NV-中心,并描述电子自旋相干时间 (T2).
主要成果:
- 在HPHT钻石中的度随着获得物质含量的增加而在半对数上下降.
- 在CVD钻石中的度随着与碳流速比率的线性增加.
- NV-中心连贯时间 (T2) 与度成反比例,HPHT和CVD钻石之间没有显著差异.
结论:
- 无论是HPHT还是CVD方法,都能精确控制钻石中的度.
- 度直接影响NV-中心的连贯时间,影响传感器性能.
- 这些发现对于优化基于钻石的量子传感器至关重要.
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