Spin coherence in two-dimensional materials

作     者：Meng Ye Hosung Seo Giulia Galli 

作者机构：Institute for Molecular EngineeringThe University of ChicagoChicagoILUSA Materials Science DivisionArgonne National LaboratoryLemontILUSA Department of PhysicsAjou UniversitySuwonRepublic of Korea Department of Energy Systems ResearchAjou UniversitySuwonRepublic of Korea Department of ChemistryUniversity of ChicagoChicagoILUSA Institute for Molecular EngineeringArgonne National LaboratoryLemontILUSA 

出 版 物：《npj Computational Materials》 (计算材料学（英文）)

年 卷 期：2019年第5卷第1期

页      面：760-765页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：This work was supported by the National Science Foundation(NSF)through the University of Chicago MRSEC under award number DMR-1420709 H.S.was also supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(No.2018R1C1B6008980 and No.2018R1A4A1024157) 

主　　题：exceptional realization solids 

摘      要：Spin defects in semiconducting solids are promising platforms for the realization of quantum *** low temperature and in the presence of a large magnetic field,the central spin decoherence is mainly due to the fluctuating magnetic field induced by nuclear spin flip-flop *** spin Hamiltonians and a cluster expansion method,we investigate the electron spin coherence of defects in two-dimensional(2D)materials,including delta-doped diamond layers,thin Si films,MoS_(2),and *** show that isotopic purification is much more effective in 2D than in three-dimensional materials,leading to an exceptionally long spin coherence time of more than 30 ms in an isotopically pure monolayer of MoS_(2).