Fermi-Bose Mixtures and BCS-BEC Crossover in High-Tc Superconductors
MY Kagan, A Bianconi - Condensed Matter, 2019 - mdpi.com
In this review article we consider theoretically and give experimental support to the models
of the Fermi-Bose mixtures and the BCS-BEC (Bardeen Cooper Schrieffer–Bose Einstein) …
of the Fermi-Bose mixtures and the BCS-BEC (Bardeen Cooper Schrieffer–Bose Einstein) …
Superconductivity in alkali metal intercalated iron selenides
A Krzton-Maziopa, V Svitlyk… - Journal of Physics …, 2016 - iopscience.iop.org
Alkali metal intercalated iron selenide superconductors A x Fe 2− y Se 2 (where A= K, Rb,
Cs, Tl/K, and Tl/Rb) are characterized by several unique properties, which were not revealed …
Cs, Tl/K, and Tl/Rb) are characterized by several unique properties, which were not revealed …
Coexistence of -wave superconductivity and phase separation in the half-filled extended Hubbard model with attractive interactions
Understanding competing instabilities in systems with correlated fermions remains one of
the holy grails of modern condensed matter physics. Among the fermionic lattice models …
the holy grails of modern condensed matter physics. Among the fermionic lattice models …
Direct observation of nanoscale interface phase in the superconducting chalcogenide with intrinsic phase separation
We have used scanning micro x-ray diffraction to characterize different phases in
superconducting K x Fe 2− y Se 2 as a function of temperature, unveiling the thermal …
superconducting K x Fe 2− y Se 2 as a function of temperature, unveiling the thermal …
Intrinsic arrested nanoscale phase separation near a topological Lifshitz transition in strongly correlated two-band metals
A Bianconi, N Poccia, AO Sboychakov… - Superconductor …, 2015 - iopscience.iop.org
The arrested nanoscale phase separation in a two-band Hubbard model for strongly
correlated charge carriers is shown to occur in a particular range in the vicinity of the …
correlated charge carriers is shown to occur in a particular range in the vicinity of the …
Development of a laser-based angle-resolved-photoemission spectrometer with sub-micrometer spatial resolution and high-efficiency spin detection
RZ Xu, X Gu, WX Zhao, JS Zhou, QQ Zhang… - Review of Scientific …, 2023 - pubs.aip.org
Angle-resolved photoemission spectroscopy with sub-micrometer spatial resolution (μ-
ARPES), has become a powerful tool for studying quantum materials. To achieve sub …
ARPES), has become a powerful tool for studying quantum materials. To achieve sub …
[HTML][HTML] Understanding doping, vacancy, lattice stability, and superconductivity in KxFe2− ySe2
Metal‐intercalated iron selenides are a class of superconductors that have received much
attention but are less understood in comparison with their FeAs‐based counterparts. Here …
attention but are less understood in comparison with their FeAs‐based counterparts. Here …
Coexistence of localized and itinerant electrons in and Se) revealed by photoemission spectroscopy
We report a photoemission study at room temperature on BaFe 2 X 3 (X= S and Se) and
CsFe 2 Se 3 in which two-leg ladders are formed by the Fe sites. The Fe 2 p core-level …
CsFe 2 Se 3 in which two-leg ladders are formed by the Fe sites. The Fe 2 p core-level …
Visualization of the electronic phase separation in superconducting KxFe2−ySe2
Type-II iron-based superconductors (Fe-SCs), the alkali-metal-intercalated iron selenide A x
Fe 2− y Se 2 (A= K, Tl, Rb, etc.) with a superconducting transition temperature of 32 K …
Fe 2− y Se 2 (A= K, Tl, Rb, etc.) with a superconducting transition temperature of 32 K …
Metallic phase in stoichiometric CeOBiS2 revealed by space-resolved ARPES
T Sugimoto, E Paris, T Wakita, K Terashima… - Scientific reports, 2018 - nature.com
Recently CeOBiS2 system without any fluorine doping is found to show superconductivity
posing question on its origin. Using space resolved ARPES we have found a metallic phase …
posing question on its origin. Using space resolved ARPES we have found a metallic phase …