Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions

Yanes Díaz, Rocio; Jackson, J.; Udvardi, László; Szunyogh, László; Nowak, Ulrich

Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions

Dateien

Yanes_267713.pdfGröße: 458.75 KBDownloads: 247

Datum

2013

Autor:innen

Yanes Díaz, Rocio

Jackson, J.

Udvardi, László

Szunyogh, László

Nowak, Ulrich

Angaben zur Forschungsförderung

European Union (EU): 281043
European Union (EU): 604398

Projekt

FEMTOSPIN - Multiscale Modelling of Femtosecond Spin Dynamics

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Letters. 2013, 111(21). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.111.217202

Zusammenfassung

The exchange bias effect in a compensated IrMn3/Co(111) system is studied using multiscale modeling from ab initio to atomistic spin model calculations. We evaluate numerically the out-of-plane hysteresis loops of the bilayer for different thicknesses of the ferromagnetic layer. The results show the existence of a perpendicular exchange bias and an enhancement of the coercivity of the system. To identify the origin of the exchange bias, we analyze the hysteresis loops of a selected bilayer by tuning the different contributions to the exchange interaction across the interface. Our results indicate that the exchange bias is primarily induced by Dzyaloshinskii-Moriya interactions, while the coercivity is increased mainly due to a spin-flop mechanism.

Fachgebiet (DDC)

530 Physik

Schlagwörter

exchange, bias, Dzyaloshinskii-Moriya, interactions

Zitieren

ISO 690

YANES DÍAZ, Rocio, J. JACKSON, László UDVARDI, László SZUNYOGH, Ulrich NOWAK, 2013. Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions. In: Physical Review Letters. 2013, 111(21). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.111.217202

BibTex

@article{YanesDiaz2013Excha-26771,
  year={2013},
  doi={10.1103/PhysRevLett.111.217202},
  title={Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions},
  number={21},
  volume={111},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Yanes Díaz, Rocio and Jackson, J. and Udvardi, László and Szunyogh, László and Nowak, Ulrich}
}

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