首页> 中文期刊> 《中国物理快报:英文版》 >The 4f-Hybridization Strength in Ce_(m)M_(n)In_(3m+2n) Heavy-Fermion Compounds Studied by Angle-Resolved Photoemission Spectroscopy

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

         

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 spectroscopy.Three 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 materials.The strong f0 states imply that the localized electron behavior dominates the Ce 4f states.The Ce 4f electrons are partially hybridized with the conduction electrons,making them have the dual nature of localization and itinerancy.Our quantitative comparison reveals that the f^(1/5/2)–f^(0)intensity ratio is more suitable to reflect the 4f-state hybridization strength.

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号