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Magnetic behaviour and vortex lattice transition in YBa2Cu3O7−δ (1995)

Shi-ping, Zhou ; Court, G. R.

Springer

Journal of superconductivity 8 (1995), S. 79-85

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Details

ISSN: 1572-9605

Schlagwort(e): Susceptibility ; mixed state ; pinning ; structure vortex lattice transition

Quelle: Springer Online Journal Archives 1860-2000

Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik

Notizen: Abstract Magnetic susceptibility measurements on YBa2Cu3O7−δ rod materials by an ac balanced bridge technique are made in fields of up to 50 mT and over the temperature range from 4.2 K to just belowT c . A largeH c2 accompanied by characteristic form of hysteresis has been shown. A modified critical state model of Anderson [Phys. Rev. Lett. 9, 309 (1962)] is adapted to fit the curves in the region where hysteresis is dominant because of flux trapping. A conceptual model of structure vortex lattice transition due to the intrinsic pinning of the layering configuration is suggested, which can provide an explanation of the magnetic behaviour of oxide superconductors.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00732244

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