Gaps in unconventional superconductors
Andreas Kreisel
Abstract
The energy gap is one of the defining properties of a superconductor and appears because the quasiparticle excitations radically change once a metallic system enters the superconducting state. Unconventional superconductors typically exhibit a non-uniform gapping and therefore show physical effects that are subject to intense research. In this review, we provide an overview of concepts needed to understand how unconventional superconductors are different from conventional ones, where the gapping comes from and how it expresses itself in experimentally accessible quantities. This should give the basis to understand current open research questions and navigate the recent literature that tend to contain contradictory conclusions.
Create a lesson
Related papers
Selective suppression of electronic orders via interlayer coupling in superconducting bilayer nickelate thin films
Ziao Han, Lifen Xiang, Tianren Wang et al.
Highly anisotropic collective modes of altermagnetic superconductors with Bogoliubov Fermi surfaces
Huaisong Zhao, Peng Zou, Xia-Ji Liu et al.
Electronic structure and two-orbital model of the quadlayer La5Ni4O13
Jian-Xiang Sun, Haokan Xiao, Cui-Qun Chen et al.
Electronic Reconstruction across the Tilt-Free Transition in La3Ni2O7
Mengjie Kong, Gergely Németh, Yingpeng Yu et al.
A Different Perspective on Superconductivity in Crystalline Graphene: Exploiting Energetics
Ke Wang, Shicong Song, K. Levin
Spectroscopic Evidence for Nontrivial Band Topology in Superconducting FeTe/MnTe Heterostructure
Shiwu Su, Yu Liang, Tongrui Li et al.