物理学进展

物理学进展 ›› 2019, Vol. 39 ›› Issue (2): 51-79.

• • 上一篇    

高温超导体的电子结构研究

彭舒婷，魏志远，赵志生，胡勇，何俊   

  • 发布日期:2020-10-12

Study on the Electronic Structure of High Temperature Superconductors

Peng Shu-Ting, Wei Zhi-Yuan, Zhao Zhi-Sheng, Hu Yong, He Jun-Feng   

  • Published:2020-10-12

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摘要： 高温超导的机理是凝聚态物理研究中的一个核心问题。为了揭示超导如何发生，一个 直接的手段就是观测高温超导材料内部电子结构的演变。本文主要综述运用角分辨光电子能谱 (ARPES) 及共振X-射线散射对铜氧化物高温超导体及铁基超导体展开的研究。重点介绍对铜氧 化物高温超导体Bi2Sr2CaCu2O8+ ，YBa2Cu3O7?x/La0:7Ca0:3MnO3 异质结以及SrTiO3 衬 底上生长的FeSe 薄膜的研究。最后作者对高温超导电子结构研究的现状进行了总结与展望。

关键词: 铜氧化物高温超导体；铁基高温超导体；电子结构；角分辨光电子能谱；共振X 射线 散射

Abstract: The mechanism of high temperature superconductivity is a key issue in condensed matter physics. In order to reveal the orders and interactions which are essential to superconductivity, a direct way is to unravel the electronic structure of the high temperature superconducting materials. In this paper, we review some of the studies on high-temperature cuprate superconductors and iron-based superconductors via angle-resolved photoemission spectroscopy (ARPES) and resonant elastic X- ray scattering (REXS). We mainly focus on Bi2Sr2CaCu2O8+ , YBa2Cu3O7??x/La0:7Ca0:3MnO3 heterostructures and FeSe lms grown on SrTiO3 substrate.

Key words: high-temperature cuprate superconductors; iron-based superconductors; electronic structure; angle-resolved photoemission spectroscopy; resonant elastic X-ray scattering