Control of Structural and Magnetic Properties of Polycrystalline Co2FeGe Films via Deposition and Annealing Temperatures

Vovk, A. ; Bunyaev, S.A. ; Strichovanec, P. ; Vovk, N.R. ; Postolnyi, B. ; Apolinario, A. ; Pardo, J.A. (Universidad de Zaragoza) ; Algarabel, P.A. ; Kakazei, G.N. ; Araujo J.P.

Resumen: : Thin polycrystalline Co2FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (TS) and postdeposition annealing (Ta) on structure, static and dynamic magnetic properties were systematically studied. It is shown that elevated TS (Ta) promote formation of ordered L21 crystal structure. Variation of TS (Ta) allow modification of magnetic properties in a broad range. Saturation magnetization ~920 emu/cm3 and low magnetization damping parameter α ~ 0.004 were achieved for TS = 573 K. This in combination with soft ferromagnetic properties (coercivity below 6 Oe) makes the films attractive candidates for spin-transfer torque and magnonic devices.

Idioma: Inglés

DOI: 10.3390/nano11051229

Año: 2021

Publicado en: Nanomaterials 11, 5 (2021), 1229 [14 pp.]
ISSN: 2079-4991

Factor impacto JCR: 5.719 (2021)

Categ. JCR: PHYSICS, APPLIED rank: 37 / 161 = 0.23 (2021) - Q1 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 109 / 345 = 0.316 (2021) - Q2 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 55 / 180 = 0.306 (2021) - Q2 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 53 / 109 = 0.486 (2021) - Q2 - T2

Factor impacto CITESCORE: 6.6 - Chemical Engineering (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 0.839 - Materials Science (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER E28-20R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C2

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)