Superconductivity develops in metals upon the formation of a coherent macroscopic
quantum state of electron pairs. Iron pnictides and chalcogenides are materials that have …

Since the discovery of high T c iron-based superconductors in early 2008, more than 15,000
papers have been published as a result of intensive research. This paper describes the …

The discovery of several electronic orders in kagome superconductors AV3Sb5 (A means K,
Rb, Cs) provides a promising platform for exploring unprecedented emergent physics …

The surprising discovery of superconductivity in layered iron-based materials, with transition
temperatures climbing as high as 55 K, has led to thousands of publications on this subject …

The response of the worldwide scientific community to the discovery in 2008 of
superconductivity at T c= 26 K in the Fe-based compound LaFeAsO1− x F x has been very …

Whether a quantum critical point (QCP) lies beneath the superconducting dome has been a
long-standing issue that remains unresolved in many classes of unconventional …

High-transition temperature (high-T c) superconductivity in the iron pnictides or
chalcogenides emerges from the suppression of the static antiferromagnetic order in their …

We consider a low T c metallic superconductor weakly coupled to the soft fluctuations
associated with proximity to a nematic quantum critical point (NQCP). We show that (1) a …

Abstract A V3Sb5 (A= K, Rb, Cs) is a novel kagome superconductor coexisting with the
charge density wave (CDW) order. Identifying the structure of the CDW order is crucial for …

The nature of the tetragonal-to-orthorhombic structural transition at T s≈ 90 K in single
crystalline FeSe is studied using shear-modulus, heat-capacity, magnetization, and nuclear …