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Reversal of Flux Closure States in Cobalt Nanoparticle Rings With Coaxial Magnetic Pulses
Author(s) -
Kasama Takeshi,
DuninBorkowski Rafal E.,
Scheinfein Michael R.,
Tripp Steven L.,
Liu Jie,
Wei Alexander
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200702941
Subject(s) - materials science , bistability , coaxial , nanoparticle , micromagnetics , magnetic flux , cobalt , flux (metallurgy) , closure (psychology) , magnetic field , condensed matter physics , magnetic nanoparticles , nanotechnology , optoelectronics , magnetization , physics , electrical engineering , engineering , market economy , quantum mechanics , economics , metallurgy
Bistable flux closure (FC) states in Co nanoparticle rings can be switched reversibly by applying a coaxial magnetic field (H z ). The FC switching phenomena can be reproduced by micromagnetics simulations, which also reveal novel magnetic states at intermediate applied field strengths.