Emergent singular solutions of nonlocal density-magnetization equations in one dimension
File(s)PhysRevE.77.036211.pdf (672.38 KB)
Published version
Author(s)
Holm, Darryl D
Naraigh, Lennon O
Tronci, Cesare
Type
Journal Article
Abstract
We investigate the emergence of singular solutions in a nonlocal model for a magnetic system. We study a modified Gilbert-type equation for the magnetization vector and find that the evolution depends strongly on the length scales of the nonlocal effects. We pass to a coupled density-magnetization model and perform a linear stability analysis, noting the effect of the length scales of nonlocality on the system’s stability properties. We carry out numerical simulations of the coupled system and find that singular solutions emerge from smooth initial data. The singular solutions represent a collection of interacting particles (clumpons). By restricting ourselves to the two-clumpon case, we are reduced to a two-dimensional dynamical system that is readily analyzed, and thus we classify the different clumpon interactions possible.
Date Issued
2008-03-01
Date Acceptance
2008-02-05
Citation
Physical Review E, 2008, 77 (3)
ISSN
1539-3755
Publisher
American Physical Society
Journal / Book Title
Physical Review E
Volume
77
Issue
3
Copyright Statement
© 2008 American Physical Society.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000254539900043&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Fluids & Plasmas
Physics, Mathematical
Physics
AGGREGATION
LITHOGRAPHY
FABRICATION
Publication Status
Published
Article Number
036211
Date Publish Online
2008-03-18