posted on 2006-04-04, 09:57authored byA.S. Alexandrov
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 (or vortex) scenarios of the "normal" state of cuprates.
History
School
Science
Department
Physics
Pages
161534 bytes
Publication date
2005
Notes
This is a pre-print. It is also available at: http://arxiv.org/abs/cond-mat/0511108.