Dependence of training effect on the antiferromagnetic structure of exchange-bias bilayers within the domain-state model

Biternas, Andreas G.; Chantrell, Roy W.; Nowak, Ulrich

Dependence of training effect on the antiferromagnetic structure of exchange-bias bilayers within the domain-state model

Dateien

Biternas_279157.pdfGröße: 452.86 KBDownloads: 253

Datum

2014

Autor:innen

Biternas, Andreas G.

Chantrell, Roy W.

Nowak, Ulrich

Publikationstyp

Zeitschriftenartikel

unikn.publication.listelement.citation.prefix.version.undefined

Physical Review B. 2014, 89(18). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.89.184405

Zusammenfassung

The influence of the antiferromagnetic thickness and dilution on the training effect is investigated with the use of an atomistic model for the magnetic interaction for constant temperature. We analyze the phenomenology in both ferromagnet and antiferromagnet in terms of hysteresis loop quantities and stable spin populations during training. While for small antiferromagnetic layer thicknesses we observe thermal training, an increase in the AFM thickness leads to athermal training. In contrast an increase in the AFM dilution leads to athermal training, while in low dilution we observe thermal training. At a value of dilution in the range of 30–40%, we observe the largest exchange-bias field with the smallest training effect. The domain structure of the antiferromagnet changes rapidly with dilution, which is shown to give large changes in the training effect.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

BITERNAS, Andreas G., Roy W. CHANTRELL, Ulrich NOWAK, 2014. Dependence of training effect on the antiferromagnetic structure of exchange-bias bilayers within the domain-state model. In: Physical Review B. 2014, 89(18). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.89.184405

BibTex

@article{Biternas2014Depen-27915,
  year={2014},
  doi={10.1103/PhysRevB.89.184405},
  title={Dependence of training effect on the antiferromagnetic structure of exchange-bias bilayers within the domain-state model},
  number={18},
  volume={89},
  issn={1098-0121},
  journal={Physical Review B},
  author={Biternas, Andreas G. and Chantrell, Roy W. and Nowak, Ulrich}
}

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