Magnetic anisotropy of epitaxial Co2Fe-Ge Heusler alloy films on MgO (100) substrates

Pogorily, A.N. ; Kravets, A.F. ; Nevdacha, V.V. ; Podyalovskiy, D.Y. ; Ryabchenko, S.M. ; Kalita, V.M. ; Kulik, M.M. ; Lozenko, A.F. ; Vovk, A.Ya. ; Godinho, M. ; Maurel, L. ; Pardo, J.A. (Universidad de Zaragoza) ; Magen, C. (Universidad de Zaragoza) ; Korenivski, V.

Resumen: Films of Co2Fe-Ge Heusler alloy with variable Ge concentration deposited on monocrystalline MgO (100) substrates by magnetron co-sputtering are investigated using microstructural, morphological, magnetometric, and magnetic resonance methods. The films were found to grow epitaxially, with island-like or continuous-layer morphology depending the Ge-content. The ferromagnetic resonance data versus out-of-plane and in-plane angle indicate the presence of easy plane and 4-fold in-plane anisotropy. The magnetometry data indicate additional weak 2-fold in-plane anisotropy and pronounced at low fields rotatable anisotropy. The observed magnetic anisotropy properties discussed in correlation with the microstructure and morphology of the films.

Idioma: Inglés

DOI: 10.1063/1.4978209

Año: 2017

Publicado en: AIP advances 7, 5 (2017), 055831 [5 pp]
ISSN: 2158-3226

Factor impacto JCR: 1.653 (2017)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 174 / 285 = 0.611 (2017) - Q3 - T2
Categ. JCR: PHYSICS, APPLIED rank: 81 / 146 = 0.555 (2017) - Q3 - T2
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 69 / 92 = 0.75 (2017) - Q3 - T3

Factor impacto SCIMAGO: 0.472 - Physics and Astronomy (miscellaneous) (Q2) - Nanoscience and Nanotechnology (Q2)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)