Swift heavy ion irradiation and fish tail magnetization in NBCO films - the cause and effect

Authors: Khatua, S.1; Mishra, P.K.2; Kulkarni, D.G.2; Kumar, R.3; John, J.4; Sahni, V.C.2; Pinto, R.4

Source: Superconductor Science and Technology, Volume 13, Number 3, 2000 , pp. 259-261(3)

Publisher: IOP Publishing

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Abstract:

NBCO films, prepared by pulsed laser ablation, were irradiated by 200 MeV Au ions. The magnetization curve shows a shoulder/fish tail peak effect (FTPE) in the irradiated film while the pristine or as-grown film does not have any such signature. The absence of FTPE in the preirradiated film and its appearance in the postirradiated film are explained in the context of compositional variationof spatial density of defects and the concomitant vortex mobility.

Document Type: Miscellaneous

Affiliations: 1: Jai Hind College, Bombay 20, India 2: Bhabha Atomic Research Centre, Bombay 85, India 3: Nuclear Science Centre, Delhi 67, India 4: Tata Institute of Fundamental Research, Bombay 5, India

Publication date: January 1, 2000

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