Angle-resolved photoemission studies of quantum materials

JA Sobota, Y He, ZX Shen - Reviews of Modern Physics, 2021 - APS
The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Iron pnictides and chalcogenides: a new paradigm for superconductivity

RM Fernandes, AI Coldea, H Ding, IR Fisher… - Nature, 2022 - nature.com
Superconductivity is a remarkably widespread phenomenon that is observed in most metals
cooled to very low temperatures. The ubiquity of such conventional superconductors, and …

Time-reversal symmetry broken by charge order in

R Khasanov, D Das, R Gupta, C Mielke III… - Physical Review …, 2022 - APS
The recently discovered vanadium-based kagome metals AV 3 Sb 5 (A= K, Rb, Cs) exhibit
superconductivity at low temperatures and charge density wave (CDW) order at high …

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 …

Evidence of a hidden flux phase in the topological kagome metal CsVSb

L Yu, C Wang, Y Zhang, M Sander, S Ni, Z Lu… - arXiv preprint arXiv …, 2021 - arxiv.org
Phase transitions governed by spontaneous time reversal symmetry breaking (TRSB) have
long been sought in many quantum systems, including materials with anomalous Hall effect …

State with spontaneously broken time-reversal symmetry above the superconducting phase transition

V Grinenko, D Weston, F Caglieris, C Wuttke, C Hess… - Nature Physics, 2021 - nature.com
The most well-known example of an ordered quantum state—superconductivity—is caused
by the formation and condensation of pairs of electrons. Fundamentally, what distinguishes …

Split superconducting and time-reversal symmetry-breaking transitions in Sr2RuO4 under stress

V Grinenko, S Ghosh, R Sarkar, JC Orain, A Nikitin… - Nature Physics, 2021 - nature.com
Abstract Strontium ruthenate (Sr2RuO4) continues to present an important test of our
understanding of unconventional superconductivity, because while its normal-state …

Recent progress on superconductors with time-reversal symmetry breaking

SK Ghosh, M Smidman, T Shang… - Journal of Physics …, 2020 - iopscience.iop.org
Superconductivity and magnetism are adversarial states of matter. The presence of
spontaneous magnetic fields inside the superconducting state is, therefore, an intriguing …

Microscopic evidence for anisotropic multigap superconductivity in the CsV3Sb5 kagome superconductor

R Gupta, D Das, CH Mielke III, Z Guguchia… - npj Quantum …, 2022 - nature.com
The recently discovered kagome superconductor CsV3Sb5 (T c≃ 2.5 K) has been found to
host charge order as well as a non-trivial band topology, encompassing multiple Dirac …

Superconducting vortices carrying a temperature-dependent fraction of the flux quantum

Y Iguchi, RA Shi, K Kihou, CH Lee, M Barkman… - Science, 2023 - science.org
Magnetic field penetrates type-II bulk superconductors by forming quantum vortices that
enclose a magnetic flux equal to the magnetic flux quantum. The flux quantum is a universal …