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Atomically Flat Ultrathin Cobalt Ferrite Islands
Author(s) -
MartínGarcía Laura,
Quesada Adrián,
Munuera Carmen,
Fernández Jose F.,
GarcíaHernández Mar,
Foerster Michael,
Aballe Lucía,
de la Figuera Juan
Publication year - 2015
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.201502799
Subject(s) - materials science , cobalt ferrite , cobalt , ferrite (magnet) , condensed matter physics , magnetic domain , nanostructure , nanotechnology , magnetic field , composite material , metallurgy , magnetization , physics , quantum mechanics
A route for fabricating structurally perfect cobalt ferrite magnetic nanostructures is demonstrated. Ultrathin islands of up to 100 μm 2 with atomically flat surfaces and free from antiphase boundaries are developed. The extremely low defect concentration leads to a robust magnetic order, even for thicknesses below 1 nm, and exceptionally large magnetic domains. This approach allows the evaluation of the influence of specific extrinsic effects on domain wall pinning.