Magnetic Sensing inside a Diamond Anvil Cell via Nitrogen-Vacancy Center Spins

The diamond anvil cell-based high-pressure technique is a unique tool for creating new states of matter and for understanding the physics underlying some exotic phenomena.In situ sensing of spin and charge properties under high pressure is crucially important but remains technically challenging.While the nitrogen-vacancy(NV)center in diamond is a promising quantum sensor under extreme conditions,its spin dynamics and the quantum control of its spin states under high pressure remain elusive.In this study,we demonstrate coherent control,spin relaxation,and spin dephasing measurements for ensemble NV centers up to 32.8 GPa.With this in situ quantum sensor,we investigate the pressure-induced magnetic phase transition of a micron-size permanent magnet Nd_2Fe_(14)B sample in a diamond anvil cell,with a spatial resolution of ～2μm,and sensitivity of ～20 μT/Hz~(1/2). This scheme could be generalized to measure other parameters such as temperature,pressure and their gradients under extreme conditions.This will be beneficial for frontier research of condensed matter physics and geophysics.     

关于Ω-型模李超代数

本文研究了文献[1]中新的有限维Ω-型单模李超代数的结构问题.利用Ω-型模李超代数的偶部生成元集,将导子作用在其偶部生成元集上,获得了Ω-型模李超代数偶部到奇部的具有负Z-次数的导子.     

Erratum:Magnetic Sensing inside a Diamond Anvil Cell via Nitrogen-Vacancy Center Spins[Chin.Phys.Lett.36(2019)086201]

This work⑴was additionally supported by the National Key R&D Program of China under Grant No 2018YFA0305700.The financial acknowledgment section should be corrected as follows:Supported by the National Basic Research Program of China under Grant No 2015CB921103,the National Key R&D Program of China under Grant Nos 2016YFA0401503 and 2018YFA0305700,the Strategic Priority Research Program of Chinese Academy of Sciences under Grant No XDB28000000.     

关于Γ-型模李超代数

研究Γ-型模李超代数偶部的结构.给出了Γ-型模李超代数的偶部生成元集.将导子作用在其偶部生成元集上,确定了Γ-型模李超代数偶部到奇部的具有负Z-次数的导子.