Mechanisms of screening or enhancing the pseudogap throughout the two-band Bardeen-Cooper-Schrieffer to Bose-Einstein condensate crossover

H Tajima, Y Yerin, P Pieri, A Perali - Physical Review B, 2020 - APS
We demonstrate the rise and fall of multiple pseudogaps in the Bardeen-Cooper-Schrieffer
to Bose-Einstein condensation crossover in two-band fermionic systems having different …

Influence of electron irradiation on fluctuation conductivity and pseudogap in YBa2Cu3O7− δ single crystals

AL Solovjov, LV Omelchenko, EV Petrenko… - Low Temperature …, 2022 - pubs.aip.org
The effect of electron irradiation with the energy of 2.5 MeV on the temperature
dependences of the resistivity ρ (T) of an optimally doped YBa 2 Cu 3 O 7− δ single crystal …

Nematic state of the FeSe superconductor

S Rößler, M Coduri, AA Tsirlin, C Ritter, G Cuello… - Physical Review B, 2022 - APS
We study the crystal structure of the tetragonal iron selenide FeSe and its nematic phase
transition to the low-temperature orthorhombic structure using synchrotron x-ray and neutron …

[HTML][HTML] Hidden Pseudogap and Excitation Spectra in a Strongly Coupled Two-Band Superfluid/Superconductor

H Tajima, P Pieri, A Perali - Condensed Matter, 2021 - mdpi.com
We investigate single-particle excitation properties in the normal state of a two-band
superconductor or superfluid throughout the Bardeen–Cooper–Schrieffer (BCS) to Bose …