Vortex and critical fields in charged Bose liquids and unconventional superconductors

A single vortex in the charged Bose gas (CBG) has a charged core and its profile different from the vortex in neutral and BCS superfluids. Lower and upper critical fields of CBG are discussed. The unusual resistive upper critical field, Hc2(T), of many cuprates and a few other unconventional superco...

Full description

Saved in:
Bibliographic Details
Main Author: A.S. Alexandrov
Format: Default Preprint
Published: 2003
Subjects:
Condensed matter physics not elsewhere classified
Other physical sciences not elsewhere classified
superconductivity
strongly correlated electrons
Physical Sciences not elsewhere classified
Condensed Matter Physics
Online Access:https://hdl.handle.net/2134/1166
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A single vortex in the charged Bose gas (CBG) has a charged core and its profile different from the vortex in neutral and BCS superfluids. Lower and upper critical fields of CBG are discussed. The unusual resistive upper critical field, Hc2(T), of many cuprates and a few other unconventional superconductors is described as the Bose-Einstein condensation field of preformed bosons-bipolarons. Its nonlinear temperature dependence follows from the scaling arguments. Exceeding the Pauli paramagnetic limit is explained. Controversy in the determination of Hc2(T) of cuprates from kinetic and thermodynamic measurements is addressed in the framework of the bipolaron theory.

Similar Items