This article gives an overview of both theoretical and experimental developments
concerning states with lattice symmetry breaking in the cuprate high-temperature …

In the quest for superconductors with higher transition temperatures (T c), one emerging
motif is that electronic interactions favorable for superconductivity can be enhanced by …

The universality of the strange metal phase in many quantum materials is often attributed to
the presence of a quantum critical point (QCP), a zero-temperature phase transition ruled by …

For any practical superconductor the magnitude of the critical current density, J c, is crucially
important. It sets the upper limit for current in the conductor. Usually J c falls rapidly with …

A pivotal step toward understanding unconventional superconductors would be to decipher
how superconductivity emerges from the unusual normal state. In the cuprates, traces of …

It is still unclear why the transition temperature T c of cuprate superconductors falls with
underdoping. The doping dependence of the critical magnetic field H c2 is directly relevant …

The temperature dependence of the London penetration depth λ was measured for an
untwinned single crystal of YBa 2 Cu 3 O 7-δ along the three principal crystallographic …

In this paper we address the question of whether high-temperature superconductors have
anything in common with BCS-BEC crossover theory. Towards this goal, we present a …

The classical Bardeen–Cooper–Schrieffer and Eliashberg theories of the electron–phonon-
mediated superconductivity are based on the Migdal theorem, which is an assumption that …

A detailed analysis of muon-spin rotation (μSR) spectra in the vortex state of type-II
superconductors using different theoretical models is presented. Analytical approximations …