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Updated: Jan 2, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Ferromagnetic excess moments and apparent exchange bias in FeF2 single crystals
D C Joshi1, P Nordblad2, R Mathieu2
1Department of Engineering Sciences, Uppsala University, Box 534, SE-751 21, Uppsala, Sweden. deep.joshi@angstrom.uu.se.
Abstract:
The anisotropic antiferromagnet FeF2 has been extensively used as an antiferromagnetic layer to induce exchange bias effects in ferromagnetic/antiferromagnetic bilayers and heterostructures. In this work, an apparent exchange bias occurring in the low temperature hysteresis loops of FeF2 single crystals is investigated. A detailed investigation of the hysteresis and remnant magnetization indicates that the observation of an apparent exchange bias in FeF2 stems from an intrinsic excess moment associated with a distortion of the antiferromagnetic structure of piezomagnetic origin.
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