Unveiling the quasiparticle behaviour in the pressure-induced high-Tc phase of an iron-chalcogenide superconductor

Z Zajicek, P Reiss, D Graf, JCA Prentice, Y Sadki… - npj Quantum …, 2024 - nature.com
Superconductivity of iron chalocogenides is strongly enhanced under applied pressure yet
its underlying pairing mechanism remains elusive. Here, we present a quantum oscillations …

Vertex dominated superconductivity in intercalated FeSe

S Acharya, MI Katsnelson, M van Schilfgaarde - npj Quantum Materials, 2023 - nature.com
Bulk FeSe becomes superconducting below 9 K, but the critical temperature (T c) is
enhanced almost universally by a factor of~ 4–5 when it is intercalated with alkali elements …

Investigation of pressure impact on physical characteristics of FeSe chalcogenide superconductor: Insights from first principles calculation

S Hota, KL Mohanta - Computational Materials Science, 2024 - Elsevier
Understanding the high-pressure physical characteristics of iron selenium (FeSe)
superconductors is crucial to comprehending their superconducting abilities. First-principles …

Enhancement of electron-phonon coupling due to increased magnetism and applied hydrostatic pressure in FeSe

X Ouyang, Z Song, YZ Zhang - Superconductor Science and …, 2024 - iopscience.iop.org
Inspired by the parabolic trend of the superconducting transition temperature (Tc) of bulk
FeSe under hydrostatic pressure, we investigated the effect of magnetism and hydrostatic …

Robust Fe divalent state in one-unit-cell thin films

J Shen, W Jiang, F Zhu, G Wang, H Li, G Zhao, Q Li… - Physical Review B, 2022 - APS
The orbital occupancy, as the origin of Hund's rule coupling, provides critical information in
understanding the multiorbital iron-based superconductors. The one-unit-cell (1UC) FeSe …