Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions
Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions
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2013
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281043
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HARFIR- Heusler Alloy Replacement for Iridium
FEMTOSPIN - Multiscale Modelling of Femtosecond Spin Dynamics
FEMTOSPIN - Multiscale Modelling of Femtosecond Spin Dynamics
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Physical Review Letters ; 111 (2013), 21. - ISSN 0031-9007. - eISSN 1079-7114
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.
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530 Physik
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exchange,bias,Dzyaloshinskii-Moriya,interactions
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YANES DÍAZ, Rocio, J. JACKSON, László UDVARDI, László SZUNYOGH, Ulrich NOWAK, 2013. Exchange Bias Driven by Dzyaloshinskii-Moriya Interactions. In: Physical Review Letters. 111(21). ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.111.217202BibTex
@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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