J. Phys. I France
Volume 5, Numéro 4, April 1995
Page(s) 475 - 483
DOI: 10.1051/jp1:1995141
J. Phys. I France 5 (1995) 475-483

Neutron Depolarization in Superconductors

N.K. Zhuchenko

Petersbourg Nuclear Physics Institute, Gatchina, St. Petersburg district, 188350, Russia

(Received 16 November 1994, accepted 4 January 1995)

The dependences of neutron depolarization on applied magnetic field are deduced along the magnetization hysteresis loop in terms of the Bean model of the critical state. The depolarization in uniaxial superconductors with the reversible magnetization, including uniaxial magnetic superconductors, is also considered. A strong depolarization is expected if the neutrons travel along the vortex lines.

On calcule la dépendance en champ magnétique de la dépolarisation des neutrons le long du cycle d'hystérésis en termes du modèle critique de Bean. On considère aussi la dépolarisation dans les supraconducteurs uniaxiaux en fonction de l'aimantation réversible, y compris pour les supraconducteurs magnétiques. On attend une forte dépolarisation si les neutrons se propagent le long des vortex.

© Les Editions de Physique 1995

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