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Accueil > Evénements > Séminaires > Archives 2014 > Magnetism and electronic
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Magnetism and electronic transport in single MnAs nanowires - Laura Steren - Mardi 9 septembre 2014 à 11 h

Laura Steren - CONICET - Centro Atomico Constituyentes- Université de Buenos Aires - Argentine

Mardi 9 septembre 2014 à 11 h - INSP - 4 place Jussieu - 75252 PARIS Cedex 05 - Barre 22-32 - 4e étage, salle 407

Résumé

Manganese arsenide was extensively studied for a long time due to its interesting magneto-structural properties. The bulk compound presents a first-order ferromagnetic to paramagnetic transition above room temperature together with a structural transition from a low-temperature hexagonal (a-phase) to a high-temperature orthorhombic crystalline structure (b-phase). Recently, the research on this material regained interest due to its potential application for technological applications. In order to successfully develop MnAs based devices for spintronics, a full understanding of the effect of the confinement to the nanoscale on the physical properties of these systems is required. In my talk, I will present our most recent results regarding the magnetism and the electronic transport of single MnAs nanowires. They include a rich variety of phenomena, from changes in the magnetic domain structure to magnetic-field induced phase transition.