Normal-State Diamagnetism of Charged Bosons in Cuprate Superconductors

A. S. Alexandrov

doi:10.1103/PhysRevLett.96.147003

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Normal-State Diamagnetism of Charged Bosons in Cuprate Superconductors

A. S. Alexandrov

DOI 10.1103/PhysRevLett.96.147003 · Physical Review Letters

T1

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Abstract

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. The parameter-free descriptions of normal-state diamagnetism, Tc, upper critical fields, and specific heat anomalies support the 3D Bose-Einstein condensation of preformed real-space pairs with a zero off-diagonal order parameter above Tc at variance with phase fluctuation scenarios of cuprates.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2212 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	onset
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown