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Annealing effect on local nucleation fields in bistable microwires
Author(s) -
Ipatov M.,
Zhukova V.,
Gonzalez J.,
Zhukov A.
Publication year - 2011
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201026373
Subject(s) - nucleation , annealing (glass) , bistability , materials science , condensed matter physics , magnetic field , amorphous solid , crystallography , composite material , physics , thermodynamics , chemistry , optoelectronics , quantum mechanics
We have investigated the influence of annealing on the local nucleation fields distribution in amorphous magnetically bistable microwires. The measurements have quite surprisingly shown a considerable increase of the local nucleation fields after annealing of the wire, although it is generally expected that thermal annealing without a magnetic field relieves the internal stresses, which results in a reduction of the nucleation fields. The increase of the local nucleation fields is explained by the disappearance of local inhomogeneities after annealing.