Publication
Journal of Applied Physics
Paper

Flux lattice behavior in high-Tc materials studied by neutron depolarization

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Abstract

The depolarization of a neutron beam passing through a sample of the high-Tc superconductor YBa2Cu3O 7-δ has been measured as a function of temperature and applied field. The difference in behavior between field-cooled and zero-field-cooled states, the observation of hysteresis correlated with Hc1, and the disappearance of the effect near 55 K (below Tc) suggest an explanation in terms of vortex line lattice formation with possible connection to recently proposed flux line entanglement and melting.

Date

01 Jan 1990

Publication

Journal of Applied Physics

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