A phenomenological model for the spontaneous exchange bias effect

Abstract

In this work we propose an alternative model to explain the spontaneous exchange bias (SEB) effect observed in spin glass (SG)-like systems. As in a previously proposed model (Ref. 1), it is based on the unconventional dynamics of the SG-like moments at the magnetic hysteresis cycle. However, using a reliable estimate of the amount of SG-spins that are relaxing during the cycle, the new model can correctly describe the changes in the SEB observed for measurements performed at different temperatures and different maximum applied fields.

arXiv comment9 pages, 3 figures

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• Superspin Glass Mediated Giant Spontaneous Exchange Bias in a Nanocomposite of BiFeO${}_3$-Bi${}_2$Fe${}_4$O${}_9$
• Giant zero field cooled spontaneous exchange bias effect in phase separated La1.5Sr0.5CoMnO6
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Cited by in corpus (9)

• Tuning the spontaneous exchange bias effect with Ba to Sr partial substitution in La${}_{1.5}$(Sr${}_{0.5-x}$Ba${}_x$)CoMnO${}_6$
• Griffiths phase and spontaneous exchange bias in La${}_{1.5}$Sr${}_{0.5}$CoMn${}_{0.5}$Fe${}_{0.5}$O${}_6$
• Essential aspects of the spontaneous exchange bias effect
• The spontaneous exchange bias effect in La2-xCaxCoMnO6 series
• The spontaneous exchange bias effect on La${}_{1.5}$Ba${}_{0.5}$CoMnO${}_6$
• The 3d and 5d electronic structures and orbital hybridization in Ba- and Ca-doped La2CoIrO6 double perovskite
• Absence of zero-field-cooled exchange bias effect in single crystalline La2-xAxCoMnO6 (A = Ca, Sr) compounds
• Structural transitions and spontaneous exchange bias in La2-xBaxCoMnO6 series
• Tuning the spontaneous exchange bias effect in La1.5Sr0.5CoMnO6 with sintering temperature