Structure and magnetization of a two-dimensional vortex liquid in the presence of strong pinning

Dasgupta, Chandan and Feinberg, Denis (1998) Structure and magnetization of a two-dimensional vortex liquid in the presence of strong pinning. In: Physical Review B, 57 (18). pp. 11730-11737.

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Abstract

The structure of a two-dimensional vortex liquid in the presence of strong pinning centers is investigated using the density-functional formalism. Short-range positional and angular correlations in the liquid result in an effective interaction between pinned vortices, mediated by the unpinned ones. This effective interaction is short range and it oscillates with the intervortex distance. Matching of this oscillation with a periodic array of strong pinning centers leads to anomalies in the reversible magnetization M(H) at the "matching field" $B_\phi$ and some of its harmonics.

Item Type:	Journal Article
Publication:	Physical Review B
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	08 Jan 2007
Last Modified:	19 Sep 2010 04:33
URI:	http://eprints.iisc.ac.in/id/eprint/9337

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