Title

Bulk Phase Transition in YBa2Cu3O7- Single Crystals

Document Type

Article

Publication Date

1-1-1991

Abstract

Precise magnetization measurements of YBa2Cu3O7- single crystals have found evidence for a bulk phase transition a few degrees below the superconducting critical temperature. The phase transition is indicated by a sudden drop of the lower critical field, Hc1(T), separating a full coherent state at low fields and temperatures, the Meissner state, from a region at higher temperatures where magnetic excitations are induced at H=0.

DOI

10.1103/PhysRevB.43.13610

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