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

High-temperature superconductivity in the iron-based materials emerges from, or sometimes
coexists with, their metallic or insulating parent compound states. This is surprising, as these …

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

The iron-based superconductors that contain FeAs layers as the fundamental building block
in the crystal structures have been rationalized in the past using ideas based on the Fermi …

Angle resolved photoemission spectroscopy (ARPES) reveals the features of the electronic
structure of quasi-two-dimensional crystals which are crucial for spin and charge ordering …

We report the temperature evolution of the detailed electronic band structure in FeSe single
crystals measured by angle-resolved photoemission spectroscopy (ARPES), including the …

We study a multiorbital model for the alkaline iron selenides K 1-x Fe 2-y Se 2 using a slave-
spin method. With or without ordered vacancies, we identify a metal-to-Mott-insulator …

Band topology, namely the global wavefunction structure that gives rise to the properties
observed in the bulk and on the surface of crystalline materials, is currently a topic under …

The iron-based superconductors are characterized by multiple-orbital physics where all the
five Fe 3 d orbitals get involved. The multiple-orbital nature gives rise to various novel …

We used angle-resolved photoemission spectroscopy to reveal directly the momentum
distribution of the superconducting gap in FeTe 1− x Se x, which has the simplest structure of …