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Abstract: The ferromagnetic to nonferromagnetic and#945;-and#946; phase transition inepitaxial MnAs layers on GaAs100 is studied by x-ray magnetic circulardichroism and x-ray magnetic linear dichroism photoemission electron microscopyin order to elucidate the nature of the controversial nonferromagnetic state ofand#946;-MnAs. In the coexistence region of the two phases the and#946; phase showsa clear XMLD signal characteristic of antiferromagnetism. The nature and thepossible causes of the elusiveness of this magnetic state are discussed.



Autor: Ernst Bauer, Rachid Belkhou, Salia Cherifi NEEL, Andrea Locatelli, A. Pavlovska, Nicolas Rougemaille NEEL

Fuente: https://arxiv.org/



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