The 4f-Hybridization Strength in Ce_(m)M_(n)In_(3m+2n) Heavy-Fermion Compounds Studied by Angle-Resolved Photoemission Spectroscopy

作     者：Jiao-Jiao Song Yang Luo Chen Zhang Qi-Yi Wu Tomasz Durakiewicz Yasmine Sassa Oscar Tjernberg Martin Mansson Magnus HBerntsen Yin-Zou Zhao Hao Liu Shuang-Xing Zhu Zi-Teng Liu Fan-Ying Wu Shu-Yu Liu Eric DBauer Ján Rusz Peter MOppeneer Ya-Hua Yuan Yu-Xia Duan Jian-Qiao Meng 宋姣姣;罗洋;章晨;吴旗仪;Tomasz Durakiewicz;Yasmine Sassa;Oscar Tjernberg;Martin Mansson;Magnus HBerntsen;赵尹陬;刘豪;朱双兴;刘子腾;邬钒颖;刘姝妤;Eric DBauer;Ján Rusz;Peter MOppeneer;袁亚华;段玉霞;孟建桥

作者机构：School of Physics and ElectronicsCentral South UniversityChangsha 410083China Institute of PhysicsMaria Curie Sklodowska University20-031 LublinPoland Department of Physics and AstronomyUppsala UniversityBox 516S-75120 UppsalaSweden Department of PhysicsChalmers University of Technology41296 GoteborgSweden Department of Applied PhysicsKTH Royal Institute of TechnologyAlba Nova10691 StockholmSweden Condensed Matter and Magnet Science GroupLos Alamos National LaboratoryLos AlamosNew Mexico 87545USA 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2021年第38卷第10期

页      面：37-42页

核心收录：

学科分类：080705[工学-制冷及低温工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 12074436 and 11574402) the Innovation-Driven Plan in Central South University (Grant No. 2016CXS032) support through the Swedish Research Council (VR) and the Swedish National Infrastructure for Computing (SNIC),for computing time on computer cluster Triolith at the NSC center Link?ping (supported by VR Grant No. 2018-05973) the support from the Swedish Research Council (VR) through a Starting Grant (No. Dnr. 2017-05078) support from the Swedish Research Council(VR) the Knut and Alice Wallenberg foundation supported by a Marie Sklodowska-Curie Action,International Career Grant through the European Commission and Swedish Research Council (VR)(Grant No. INCA-2014-6426) a VR neutron project (Grant No. BIFROST, Dnr. 2016-06955) granted by the Carl Tryggers Foundation for Scientific Research (Grant Nos. CTS-16:324 and CTS-17:325) the auspices of the U.S. Department of Energy,Office of Basic Energy Sciences,Division of Materials Sciences and Engineering 

主　　题：spectroscopy materials strength 

摘      要：We systemically investigate the nature of Ce 4f electrons in structurally layered heavy-fermion compounds Ce_(m)M_(n)In_(3m+2n)(with M=Co,Rh,Ir,and Pt,m=1,2,n=0–2),at low temperature using on-resonance angle-resolved photoemission *** heavy quasiparticle bands f^(0),f^(1/7/2)and f^(1/5/2),are observed in all compounds,whereas their intensities and energy locations vary greatly with *** strong f0 states imply that the localized electron behavior dominates the Ce 4f *** Ce 4f electrons are partially hybridized with the conduction electrons,making them have the dual nature of localization and *** quantitative comparison reveals that the f^(1/5/2)–f^(0)intensity ratio is more suitable to reflect the 4f-state hybridization strength.