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) …

One novel arena for designing superconductors with high TC is the flat band system. A basic
idea is that flat bands, arising from quantum mechanical interference, give unique …

Nanoscale phase separation (NPS), characterized by particular types of correlated
disorders, plays an important role in the functionality of high-temperature superconductors …

In the pursuit of higher critical temperature of superconductivity, quasiflat electronic bands
and Van Hove singularities in two dimensions (2D) have emerged as a potential approach …

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 …

It is well known that superconductivity in quasi-one-dimensional (Q1D) materials is hindered
by large fluctuations of the order parameter. They reduce the critical temperature and can …

While it is known that a resonant amplification of T c in two-gap superconductors can be
driven by using the Fano–Feshbach resonance tuning the chemical potential near a Lifshitz …

Two-band electronic structures with a valence and a conduction band separated by a
tunable energy gap and with pairing of electrons in different channels can be relevant to …

To explore more novel superconductors, we have synthesized the potassium-doped p-
quaterphenyl by an annealing or just a pestling process. The Meissner effect with critical …

The maximum critical temperature for superconductivity in pressurized hydrides appears at
the top of superconducting domes in T c vs pressure curves at a particular pressure, which is …