(II) 金属复合物作为可光学定位的量子候选物
Michael K Wojnar1, Daniel W Laorenza1, Richard D Schaller1,2
1Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.
Journal of the American Chemical Society
|August 14, 2020
概括
合成化学家为量子信息科学创造了新的基分子. 这些新奇的量子比特能够光学读取自旋,
科学领域:
- 量子信息科学
- 合成化学
- 材料科学
背景情况:
- 量子信息科学依赖于量子比特,在可调节的分子系统中需要光学可读的自旋状态.
- 目前的量子传感应用可以通过提供光学自旋读数的分子系统进行转换,类似于基于缺陷的系统.
研究的目的:
- 探索八面对称的 (II) 离子作为量子位中光学自旋读数的潜在候选者.
- 合成和描述适用于电子磁共振 (EPR) 和光学定位的 (II) 复合物.
主要方法:
- 鉴定和合成两个高度对称的Ni (II) 复合物:Ni () 3 (BF4) 2 (1) 和Ni (pyr3) 2 (BF4) 2 (2).
- 使用脉冲EPR来确定轴向零场分裂参数的表征 (D).
- 用光谱分析来确认光学读取的发射特性.
主要成果:
- 确定了两种具有弱零场分裂 (D = 1 的 +0.9 厘米-1 , D = 2 的 +2.7 厘米-1) 的 Ni (II) 化合物,使得 EPR 可定位.
- 这两种化合物都在近红外区域 (λmax = 938944 nm) 呈现辐射,这对于光学读取至关重要.
- 证实了强大的场联体,促进了光学定位性.
结论:
- (II) 基化合物被引入作为一个新的量子材料类别.
- 这些发现为开发用于量子传感和信息处理的光学自旋读数的分子系统提供了途径.
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