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 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 …

Majorana zero modes (MZMs) obey non-Abelian statistics and are considered building
blocks for constructing topological qubits,. Iron-based superconductors with topological …

The superconductor iron selenide (FeSe) is of intense interest owing to its unusual
nonmagnetic nematic state and potential for high-temperature superconductivity. But its …

In superconductors, electrons are paired and condensed into the ground state. An impurity
can break the electron pairs into quasiparticles with energy states inside the …

I review theoretical ideas and implications of experiments for the gap structure and symmetry
of the Fe-based superconductors. Unlike any other class of unconventional …

The Cooper pairing mechanism of heavy fermionsuperconductors,,,, long thought to be due
to spin fluctuations,,, has not yet been determined. It is the momentum space (k-space) …

Single-layer FeSe film on SrTiO3 (001) has recently come to the fore as an interfacial
superconducting system, with a transition temperature that is significantly enhanced with …

Superconductivity in the iron pnictides is often closely connected to a nematic state in which
the tetragonal symmetry of the crystal is spontaneously broken. Determining the dominant …

We investigate how emergent nematic order and nematic fluctuations affect several
macroscopic properties of both the normal and superconducting states of the iron pnictides …