在六角化中对-空隙旋转缺陷的同位素控制
T Clua-Provost1, A Durand1, Z Mu1
1Laboratoire Charles Coulomb, Université de Montpellier and CNRS, 34095 Montpellier, France.
Physical review letters
|October 6, 2023
概括
同位素工程六角化 (hBN) 晶体增强空 (V_{B}^{-}) 中心的电子自旋共振 (ESR). 纯化的h^{10}B^{15}N为量子技术和光学诱导的核自旋极化提供了最佳材料.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 量子信息科学 量子信息科学
- 材料科学 材料科学 材料科学
背景情况:
- 在六角化 (hBN) 中的空 (V_{B}^{-}) 中心是量子应用的有希望的自旋缺陷.
- hBN的同位素组成可以显著影响宿主V_{B}^{-}中心的特性.
- 了解和控制V_{B}^{-}旋转属性对于开发量子技术至关重要.
研究的目的:
- 研究hBN的同位素工程对V_{B}^{-}中心的电子自旋共振 (ESR) 的影响.
- 为V_{B}^{-}旋转缺陷应用确定hBN的最佳同位素组成.
- 为了证明在同位素净化的hBN中光学诱导的核旋转偏振.
主要方法:
- 在同位素工程 hBN 水晶中的 V_{B}^{-} 中心进行了电子自旋共振 (ESR) 光谱.
- hBN晶体通过使用 ^{15}N 和 ^{10}B 的同位素净化.
- 使用光学方法在h^{10}B^{15}N.中诱导核自旋两极化.
主要成果:
- 用 ^{15}N 的同位素净化简化了 V_{B}^{-} 中心的超细结构.
- 使用 ^{10}B 的净化导致 V_{B}^{-} 中心的 ESR 线宽变窄.
- 在h^{10}B^{15}N中,通过电子-核自旋混合,证明了N个原子核的光学诱导极化.
结论:
- 同位素净化h^{10}B^{15}N是量子技术中V_{B}^{-}旋转缺陷的最佳宿主材料.
- 这项工作为使用二维材料的先进的基于旋转的量子传感器和模拟器铺平了道路.
- 演示的光学核自旋两极化为量子信息处理提供了新的控制机制.
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