物理学进展 ›› 2021, Vol. 41 ›› Issue (2): 94-112.doi: 10.13725/j.cnki.pip.2021.02.002

所属专题: 2023年, 第43卷

• • 上一篇    

重费米子化合物 CemMnIn3m+2n (m = 1, 2, 3; n = 0, 1, 2; M = Co, Rh,Ir, Pt 及Pd)  的角分辨光电子能谱研究

罗洋, 宋姣姣, 赵尹陬, 孟建桥   

  1. 中南大学物理与电子学院,湖南省长沙市岳麓区麓山南路932 号,410083
  • 收稿日期:2020-11-23 出版日期:2021-04-20 发布日期:2021-04-20
  • 基金资助:

    国家自然科学基金( 批准号:12074436,11574402) 和中南大学创新驱动计划项目(项目号:2016CXS032)

Angle-resolved photoemission spectroscopy on heavy Fermion CemMnIn3m+2n (m = 1, 2, 3; n = 0, 1, 2; M = Co, Rh, Ir, Pt and Pd)

Luo Yang, Song Jiao-Jiao, Zhao Yin-Zou, Meng Jian-Qiao   

  1. School of Physics and Electronics, Central South University, Changsha Hunan,410083, China

  • Received:2020-11-23 Online:2021-04-20 Published:2021-04-20

摘要:

重费米子材料以其新奇多变的宏观性质,复杂而难以理解的微观物理过程而受到广泛的关注,长期是凝聚态物理研究的重点。角分辨光电子能谱作为一种能够直接探测材料电子结构的实验手段,随着近年来实验技术的高度发展,能量和动量分辨率得到了极大的提高,能够有力地探测到强关联材料中更加精细的电子结构。使用角分辨光电子能谱探测重费米子材料的电子结构,为理解其各种物理过程提供强有力的实验证据,进而推进重费米子理论的发展。本文回顾 Ce 基重费米子材料 CemMnIn3m+2n (m = 1; 2; 3;n = 0; 1; 2;M =Co, Rh, Ir, Pt, Pd) 系列化合物的角分辨光电子能谱研究,包括电子结构的维度、近藤共振、电子与导带电子的杂化和电子结构随温度的变化等。

关键词:

"> 重费米子;非常规超导;角分辨光电子能谱;电子结构

Abstract:

Heavy fermions have been the focus of condensed matter physics. Their novel macroscopic properties and mysterious microscopic physical processes are of particular interest. Due to significant improvement in the experimental energy and momentum resolution, angle-resolved photoemission spectroscopy (ARPES) plays an important role in the investigation of heavy fermions, which provides useful information for the understanding of various physical processes. This paper reviews the most recent ARPES results on heavy fermion compounds CemMnIn3m+2n (m = 1; 2; 3; n = 0; 1; 2; M = Co, Rh, Ir, Pt, and Pd). The dimensionality of electronic structure, Kondo resonance, hybridization between f and conduction electrons, temperature-dependence of the electronic structure and other related issues are discussed.

Key words: heavy fermions, f electrons, ARPES, electronic structure

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