Berlin 2015 – wissenschaftliches Programm

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SYMM: Symposium Magic MAX Phases: Self-healing, Magnetism and the Next Best Graphene

SYMM 1: Magic MAX Phases: Self-healing, Magnetism and the next best Graphene

SYMM 1.5: Hauptvortrag

Donnerstag, 19. März 2015, 12:00–12:30, H 0105

Weak Field Magneto-Transport Properties of Mn+1AXn Phases — •Thierry Ouisse¹, Lu Shi¹, Benoit Hackens³, Benjamin Piot², and Didier Chaussende¹ — ¹Univ. Grenoble Alpes, LMGP, F-38000 Grenoble, France and CNRS, LMGP, F-38000 Grenoble, France — ²LNCMI, CNRS, France — ³IMCN/NAPS, Université Catholique de Louvain,Louvain-la-Neuve, Belgium

After a review of the published data and open issues about the electronic transport properties of polycristalline MAX phase materials, we focus on single crystals. For such nanolamellar compounds, it is expected that the structural anisotropies result in quite particular transport properties. We propose a general, yet simple model for explaining the weak field magneto-transport properties of the MAX phases in their crystalline form. The relevance of this model is then supported by elementary considerations, analytical computations and a set of experimental data obtained from single crystals of V2AlC and Cr2AlC as a function of temperature and magnetic field, both in the basal plane and along the c-axis.