典型文献
Determination of the surface states from the ultrafast electronic states in a thermoelectric material
文献摘要：
We reveal the electronic structure in YbCd2Sb2,a thermoelectric material,by angle-resolved photoemission spec-troscopy (ARPES) and time-resolved ARPES (trARPES).Specifically,three bulk bands at the vicinity of the Fermi level are evidenced near the Brillouin zone center,consistent with the density functional theory (DFT) calculation.It is inter-esting that the spin-unpolarized bulk bands respond unexpectedly to right-and left-handed circularly polarized probe.In addition,a hole band of surface states,which is not sensitive to the polarization of the probe beam and is not expected from the DFT calculation,is identified.We find that the non-equilibrium quasiparticle recovery rate is much smaller in the surface states than that of the bulk states.Our results demonstrate that the surface states can be distinguished from the bulk ones from a view of time scale in the nonequilibrium physics.
文献关键词：
中图分类号：
作者姓名：
Tongyao Wu;Hongyuan Wang;Yuanyuan Yang;Shaofeng Duan;Chaozhi Huang;Tianwei Tang;Yanfeng Guo;Weidong Luo;Wentao Zhang
作者机构：
Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education),Shenyang National Laboratory for Materials Science,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China;Institute of Natural Sciences,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Tongyao Wu;Hongyuan Wang;Yuanyuan Yang;Shaofeng Duan;Chaozhi Huang;Tianwei Tang;Yanfeng Guo;Weidong Luo;Wentao Zhang-.Determination of the surface states from the ultrafast electronic states in a thermoelectric material)[J].中国物理B（英文版）,2022(02):166-171
A类：
YbCd2Sb2,ARPES,trARPES,quasiparticle
B类：
Determination,surface,states,from,ultrafast,electronic,thermoelectric,material,We,reveal,structure,by,angle,resolved,photoemission,spec,troscopy,Specifically,three,bulk,bands,vicinity,Fermi,level,are,evidenced,near,Brillouin,zone,center,consistent,density,functional,theory,DFT,calculation,It,inter,esting,that,spin,unpolarized,respond,unexpectedly,right,left,handed,circularly,probe,In,addition,hole,which,not,sensitive,polarization,beam,identified,find,recovery,much,smaller,than,Our,results,demonstrate,can,distinguished,ones,view,scale,nonequilibrium,physics
AB值：
0.549378
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