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) …
Tuning across the BCS-BEC crossover in the multiband superconductor Fe1+ySexTe1−x: An angle-resolved photoemission study
S Rinott, KB Chashka, A Ribak, EDL Rienks… - Science …, 2017 - science.org
The crossover from Bardeen-Cooper-Schrieffer (BCS) superconductivity to Bose-Einstein
condensation (BEC) is difficult to realize in quantum materials because, unlike in ultracold …
condensation (BEC) is difficult to realize in quantum materials because, unlike in ultracold …
Superconductivity versus bound-state formation in a two-band superconductor with small Fermi energy: Applications to Fe pnictides/chalcogenides and doped
We analyze the interplay between superconductivity and the formation of bound pairs of
fermions (BCS-BEC crossover) in a 2D model of interacting fermions with small Fermi …
fermions (BCS-BEC crossover) in a 2D model of interacting fermions with small Fermi …
Breakdown of the Migdal approximation at Lifshitz transitions with giant zero-point motion in the H3S superconductor
T Jarlborg, A Bianconi - Scientific reports, 2016 - nature.com
While 203 K high temperature superconductivity in H3S has been interpreted by BCS theory
in the dirty limit here we focus on the effects of hydrogen zero-point-motion and the …
in the dirty limit here we focus on the effects of hydrogen zero-point-motion and the …
Dimensional crossover and incipient quantum size effects in superconducting niobium nanofilms
Superconducting and normal state properties of Niobium nanofilms have been
systematically investigated as a function of film thickness, on different substrates. The width …
systematically investigated as a function of film thickness, on different substrates. The width …
Screening of pair fluctuations in superconductors with coupled shallow and deep bands: A route to higher-temperature superconductivity
A combination of strong Cooper pairing and weak superconducting fluctuations is crucial to
achieve and stabilize high-T c superconductivity. We demonstrate that a coexistence of a …
achieve and stabilize high-T c superconductivity. We demonstrate that a coexistence of a …
Lifshitz transitions and zero point lattice fluctuations in sulfur hydride showing near room temperature superconductivity
A Bianconi, T Jarlborg - Novel Superconducting Materials, 2015 - degruyter.com
Emerets's experiments on pressurized sulfur hydride have shown that H3S metal has the
highest known superconducting critical temperature Tc= 203 K. The Emerets data show …
highest known superconducting critical temperature Tc= 203 K. The Emerets data show …
Observation of strong electron pairing on bands without Fermi surfaces in LiFe1−xCoxAs
In conventional BCS superconductors, the quantum condensation of superconducting
electron pairs is understood as a Fermi surface instability, in which the low-energy electrons …
electron pairs is understood as a Fermi surface instability, in which the low-energy electrons …
Berezinskii-Kosterlitz-Thouless phase transition with Rabi-coupled bosons
We theoretically investigate the superfluid–normal-state Berezinskii-Kosterlitz-Thouless
transition in a binary mixture of bosonic atoms with Rabi coupling under balanced densities …
transition in a binary mixture of bosonic atoms with Rabi coupling under balanced densities …
Emergent phenomena in multicomponent superconductivity: an introduction to the focus issue
MV Milošević, A Perali - arXiv preprint arXiv:1504.06995, 2015 - arxiv.org
Multicomponent superconductivity is a novel quantum phenomenon in many different
superconducting materials, such as multiband ones in which different superconducting gaps …
superconducting materials, such as multiband ones in which different superconducting gaps …