Flux lattice behavior in high‐Tcmaterials studied by neutron depolarization

Autor: A. C. Nunes, T. R. McGuire, S. Shinde, R. J. Goyette, T. M. Shaw, S. J. Pickart, M. L. Crow
Rok vydání: 1990
Předmět:
Zdroj: Journal of Applied Physics. 67:4542-4544
ISSN: 1089-7550
0021-8979
DOI: 10.1063/1.344862
Popis: The depolarization of a neutron beam passing through a sample of the high‐Tc superconductor YBa2Cu3O7−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.
Databáze: OpenAIRE