Normal-State Diamagnetism of Charged Bosons in Cuprate Superconductors

A. S. Alexandrov
2006 Physical Review Letters  
Normal state orbital diamagnetism of charged bosons quantitatively accounts for recent high-resolution magnetometery results near and above the resistive critical temperature Tc of superconducting cuprates. Our parameter-free descriptions of normal state diamagnetism, Tc, upper critical fields and specific heat anomalies unambiguously support the 3D Bose-Einstein condensation at Tc of preformed real-space pairs with zero off-diagonal order parameter above Tc, at variance with phase fluctuation
more » ... or vortex) scenarios of the "normal" state of cuprates.
doi:10.1103/physrevlett.96.147003 pmid:16712112 fatcat:m3x3yoi4dvcrxkvsug7z4eqdg4