On the remarkable superconductivity of FeSe and its close cousins

A Kreisel, PJ Hirschfeld, BM Andersen - Symmetry, 2020 - mdpi.com
Emergent electronic phenomena in iron-based superconductors have been at the forefront
of condensed matter physics for more than a decade. Much has been learned about the …

Nematicity, magnetism and superconductivity in FeSe

AE Böhmer, A Kreisel - Journal of Physics: Condensed Matter, 2017 - iopscience.iop.org
Iron-based superconductors are well known for their complex interplay between structure,
magnetism and superconductivity. FeSe offers a particularly fascinating example. This …

Unconventional superconductivity and density waves in twisted bilayer graphene

H Isobe, NFQ Yuan, L Fu - Physical Review X, 2018 - APS
We study electronic ordering instabilities of twisted bilayer graphene around the filling of n=
2 electrons per supercell, where correlated insulator state and superconductivity have been …

Photo-induced high-temperature ferromagnetism in YTiO3

AS Disa, J Curtis, M Fechner, A Liu, A Von Hoegen… - Nature, 2023 - nature.com
In quantum materials, degeneracies and frustrated interactions can have a profound impact
on the emergence of long-range order, often driving strong fluctuations that suppress …

Discovery of orbital-selective Cooper pairing in FeSe

PO Sprau, A Kostin, A Kreisel, AE Böhmer, V Taufour… - Science, 2017 - science.org
The superconductor iron selenide (FeSe) is of intense interest owing to its unusual
nonmagnetic nematic state and potential for high-temperature superconductivity. But its …

Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5 (A = K, Rb, Cs)

R Tazai, Y Yamakawa, S Onari, H Kontani - Science Advances, 2022 - science.org
Exotic quantum phase transitions in metals, such as the electronic nematic state, have been
discovered one after another and found to be universal now. The emergence of …

Charge-loop current order and Z3 nematicity mediated by bond order fluctuations in kagome metals

R Tazai, Y Yamakawa, H Kontani - Nature Communications, 2023 - nature.com
Recent experiments on geometrically frustrated kagome metal A V3Sb5 (A= K, Rb, Cs) have
revealed the emergence of the charge loop current (cLC) order near the bond order (BO) …

Correlations and electronic order in a two-orbital honeycomb lattice model for twisted bilayer graphene

JWF Venderbos, RM Fernandes - Physical Review B, 2018 - APS
The recent observation of superconductivity in proximity to an insulating phase in twisted
bilayer graphene (TBG) at small “magic” twist angles has been linked to the existence of …

Exotic superconducting states in FeSe-based materials

T Shibauchi, T Hanaguri, Y Matsuda - Journal of the Physical Society …, 2020 - journals.jps.jp
High-temperature superconductivity and a wide variety of exotic superconducting states
discovered in FeSe-based materials have been at the frontier of research on condensed …

The key ingredients of the electronic structure of FeSe

AI Coldea, MD Watson - Annual Review of Condensed Matter …, 2018 - annualreviews.org
FeSe is a fascinating superconducting material at the frontier of research in condensed
matter physics. Here, we provide an overview of the current understanding of the electronic …