使用设计的金刚石砧的金刚石砧室中氮空位的光学检测磁共振
Optically detected magnetic resonance of nitrogen vacancies in a diamond anvil cell using designer diamond anvils
摘要：
金刚石中氮空位中心的光学检测磁共振为高压（$>3$ GPa）下金刚石对顶砧单元中的直流和交流磁力测量提供了新的途径。然而，实现实验的一个严重挑战是将微波辐射插入到样品空间中而不通过垫圈材料屏蔽。我们利用设计师砧与光刻沉积的金属微通道的金刚石底脚作为微波天线。我们探测到了微金刚石系综在压力下的自旋共振，并测量了零场分裂参数的压力依赖性。这些实验使得在高压下对亚$μ$ L样品体积进行全光磁共振实验成为可能。
英文摘要：
Optically detected magnetic resonance of nitrogen vacancy centers in diamond offers novel routes to both DC and AC magnetometry in diamond anvil cells under high pressures ($>3$ GPa). However, a serious challenge to realizing experiments has been the insertion of microwave radiation in to the sample space without screening by the gasket material. We utilize designer anvils with lithographically-deposited metallic microchannels on the diamond culet as a microwave antenna. We detected the spin resonance of an ensemble of microdiamonds under pressure, and measure the pressure dependence of the zero field splitting parameters. These experiments enable the possibility for all-optical magnetic resonance experiments on sub-$μ$L sample volumes at high pressures.
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