Simultaneous detection of position and temperature of micromagnet using a quantum microscope  

作　　者：Zhenrong Shi Zhonghao Li Huanfei Wen Hao Guo Zongmin Ma Jun Tang Jun Liu 石振荣;李中豪;温焕飞;郭浩;马宗敏;唐军;刘俊(School of Instrument and Electronics,North University of China,Taiyuan 030051,China;School of Semiconductors and Physics,North University of China,Taiyuan 030051,China)

机构地区：[1]School of Instrument and Electronics,North University of China,Taiyuan 030051,China [2]School of Semiconductors and Physics,North University of China,Taiyuan 030051,China

出　　处：《Chinese Optics Letters》2024年第10期46-52,共7页中国光学快报（英文版）

基　　金：supported by the Special Fund for Research on National Major Research Instruments and Facilities of the National Natural Science Foundation of China(Nos.62103385,62175219,and 51821003);the Key Laboratory of Shanxi Province,China(No.201905D121001)。

摘　　要：Micromagnets,as a promising technology for microscale manipulation and detection,have been the subject of extensive study.However,providing real-time,noninvasive feedback on the position and temperature of micromagnets in complex operational environments continues to pose a significant challenge.This paper presents a quantum imaging device utilizing diamond nitrogen-vacancy(NV)centers capable of providing simultaneous feedback on both the position and temperature of a micromagnet.The device achieves a temporal resolution of 2 s and a spatial resolution of 1.3μm.Through flux localization analysis,we have determined a positioning accuracy within 50μm and a temperature accuracy within 0.4 K.

关 键 词：diamond nitrogen-vacancy centers simultaneous detection micromagnet POSITION temperature 

分 类 号：O441.2[理学—电磁学] TH742[理学—物理]