Earticle

초록

영어

Since the discovery of iron-based superconductors in 2008, extensive and intensive studies have been performed to find the microscopic theory for the high temperature superconductivity in the materials. Electronic structure is the basic and essential information that is needed for the microscopic theory. Experimentally, angle resolved photoelectron spectroscopy (ARPES) is the most direct tool to obtain the electronic structure information, and therefore has played a vital role in the research. In this review, we review what has been done so far and what is needed to be done in ARPES studies of iron-based superconductors in search of the microscopic theory. This review covers issues on the band structure, orbital order/fluctuation, and gap structure/symmetries as well as some of the theories.

목차

Abstract
 1. INTRODUCTION
 2. STRUCTURE AND PHASE DIAGRAM
 3. BAND STRUCTURE
  3.1. Fermi surfaces : nesting condition
  3.2. Multi-orbital nature of the band
 4. SUPERCONDUCTIVITY SCENARIOS
  4.1. Weak coupling approach
  4.2. Strong coupling approach
 5. SUPERCONDUCTIVITY AND BAND STRUCTURE
  5.1. Nesting condition
  5.2. Superconductivity without nesting
  5.3. Orbital ordering phase
 6. GAP SYMMETRY
  6.1. Gap symmetry - theory
  6.2. Gap structure - experiments
 7. UNRESOLVED ISSUES AND FURTHER STUDIES
 8. SUMMARY
 REFERENCES

키워드

저자

• J.J. Seo [ Department of Physics, Yonsei University, Seoul, Korea ]
• C. Kim [ Department of Physics, Yonsei University, Seoul, Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537