Symmetry locking and commensurate vortex domain formation in periodic pinning arrays


Grigorenko, A.N., Bending, S.J., Van Bael, M.J., Lange, M., Moshchalkov, V.V., Fangohr, H. and de Groot, P.A.J. (2003) Symmetry locking and commensurate vortex domain formation in periodic pinning arrays Physical Review Letters, 90, (23), 237001-[4pp]. (doi:10.1103/PhysRevLett.90.237001).

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Description/Abstract

The spontaneous formation of domains of commensurate vortex patterns near rational fractional matching fields of a periodic pinning array has been investigated with high resolution scanning Hall probe microscopy. We show that domain formation is promoted due to the efficient incorporation of mismatched excess vortices and vacancies at the corners of domain walls, which outweighs the energetic cost of creating them. Molecular dynamics simulations with a generic pinning potential reveal that domains are formed only when vortex-vortex interactions are long range.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1103/PhysRevLett.90.237001
ISSNs: 0031-9007 (print)
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ePrint ID: 22428
Date :
Date Event
2003Published
Date Deposited: 24 Mar 2006
Last Modified: 16 Apr 2017 22:50
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/22428

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