Magnetic and structural anisotropies of Co$_2$FeAl Heusler alloy epitaxial thin films - Archive ouverte HAL
Article Dans Une Revue Physical Review B Année : 2011

Magnetic and structural anisotropies of Co$_2$FeAl Heusler alloy epitaxial thin films

Résumé

This paper shows the correlation between chemical order, lattice strains, and magnetic properties of Heusler Co$_2$FeAl films epitaxially grown on MgO(001). A detailed magnetic characterization is performed using vector-field magnetometery combined with a numerical Stoner-Wohlfarth analysis. We demonstrate the presence of three types of in-plane anisotropies: one biaxial, as expected for the cubic symmetry, and two uniaxial. The three anisotropies show different behavior with the annealing temperature. The biaxial anisotropy shows a monotonic increase. The uniaxial anisotropy that is parallel to the hard biaxial axes (related to chemical homogeneity) decreases, while the anisotropy that is supposed to have a magnetostatic origin remains constant.
Fichier principal
Vignette du fichier
Magnetic and structural anisotropies of Co2FeAl Heusler alloy epitaxial thin films-PhysRevB.84.134413.pdf (644.41 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04370047 , version 1 (01-08-2024)

Identifiants

Citer

M. S. Gabor, T. Petrisor, C. Tiusan, Michel Hehn, T. Petrisor. Magnetic and structural anisotropies of Co$_2$FeAl Heusler alloy epitaxial thin films. Physical Review B, 2011, 84 (13), pp.134413. ⟨10.1103/PhysRevB.84.134413⟩. ⟨hal-04370047⟩
28 Consultations
3 Téléchargements

Altmetric

Partager

More