碳化硅色心高压量子精密测量  

Quantum Magnetic Measurement under High Pressure Based on Color Centres in Silicon Carbide

作　　者：刘琳 王俊峰 刘晓迪 LIU Lin;WANG Junfeng;LIU Xiaodi(Key Laboratory of Materials Physics,Institute of Solid State Physics,HFIPS,Chinese Academy of Sciences,Hefei 230031,Anhui,China;College of Physics,Sichuan University,Chengdu 610065,Sichuan,China)

机构地区：[1]中国科学院合肥物质科学研究院固体物理研究所,安徽合肥230031 [2]四川大学物理学院,四川成都610065

出　　处：《高压物理学报》2023年第6期32-41,共10页Chinese Journal of High Pressure Physics

基　　金：中国科学院青年创新促进会基金(2021446);中国科学院合肥物质科学研究院院长基金(BJPY2022B02,YZJJ202102,YZJJ-GGZX-2022-01,2021YZGH03)。

摘　　要：高压下的量子精密测量对于研究极端环境下的物质结构及演化具有重要意义。针对传统方法难以实现高压下原位高分辨率磁探测的难题,近年来提出了基于固态色心的高压量子精密测量技术,并取得了一系列重要进展,对于推动极端条件下的物质研究具有重要意义。本文主要聚焦基于碳化硅色心的高压量子精密测量,回顾了碳化硅中硅空位色心和双空位色心在高压下的光学和自旋性质,介绍了利用碳化硅色心光探测磁共振技术进行的高压量子传感,包括Nd_(2)Fe_(14)B的磁性相变、YBa_(2)Cu_(3)O_(6.6)超导体的超导转变温度-压力相图等,展示了基于碳化硅色心的高压量子精密测量在压力传感、压致磁性相变以及压致超导转变方面的应用。The quantum precision magnetic measurement in high-pressure environments is of great signifi-cance for studying the evolution and structure of matter under an extreme environment.Given the challenges associated with achieving in-situ high-resolution magnetic detection under high pressure by using traditional methods,the proposed high-pressure quantum magnetic measurement based on solid-state color centres has made significant progress in recent years.This advancement is of great significance in advancing the study of matter under high pressure.And this paper primarily focuses on the research of quantum magnetic measurement using SiC color centres under high pressure.The optical and spin properties of silicon vacancy defects and divacancy defects in SiC under high pressure is reviewed.Furthermore,the magnetic phase transition of Nd_(2)Fe_(14)B is observed,and the critical temperature-pressure phase diagram of the superconductor YBa_(2)Cu_(3)O_(6.6)is mapped out.This work reviews and highlights the potential of silicon vacancy-based quantum sensors for in situ magnetic detection at high pressures.Its applications in pressure sensing,pressure-induced magnetic phase transformation and pressure-induced superconducting transformation are also presented.

关 键 词：碳化硅色心 高压 磁测量 光探测磁共振 压致超导转变 

分 类 号：O521.3[理学—高压高温物理] O521.2[理学—物理]