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Imaging the antiferromagnetic to ferromagnetic first order phase transition of FeRh | | S. O. Mariager
; L. Le Guyader
; M. Buzzi
; G. Ingold
; C. Quitmann
; | | Date: |
17 Jan 2013 | | Abstract: | The antiferromagnetic (AFM) to ferromagnetic (FM) first order phase
transition of an epitaxial FeRh thin-film has been studied with x-ray magnetic
circular dichroism using photoemission electron microscopy. The FM phase is
magnetized in-plane due to shape anisotropy, but the magnetocrystalline
anisotropy is negligible and there is no preferred in-plane magnetization
direction. When heating through the AFM to FM phase transition the nucleation
of the FM phase occurs at many independent nucleation sites with random domain
orientation. The domains subsequently align to form the final FM domain
structure. We observe no pinning of the FM domain structure. | | Source: | arXiv, 1301.4164 | | Services: | Forum | Review | PDF | Favorites | |
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