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Coexisting ferro- and antiferromagnetism in Ni2MnAl Heusler alloys
Acet, Mehmet; Duman, Eyup; Wassermann, Eberhard F.; Mañosa, Lluís; Planes Vila, Antoni
Universitat de Barcelona
The structural and magnetic properties of stoichiometric Ni2MnAl are studied to clarify the conditions for ferromagnetic and antiferromagnetic ordering claimed to occur in this compound. X-ray and magnetization measurements show that although a single phase B2 structure can be stabilized at room temperature, a single L21 phase is not readily stabilized, but rather a mixed L21+B2 state occurs. The mixed state incorporates ferromagnetic and antiferromagnetic parts for which close-lying Curie and a Néel temperatures can be identified from magnetization measurements.
19-04-2012
Propietats magnètiques
Cristal·lografia
Magnetic properties
Crystallography
(c) American Institute of Physics, 2002
Artículo
American Institute of Physics
         

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