000118074 001__ 118074
000118074 005__ 20240319080954.0
000118074 0247_ $$2doi$$a10.1016/j.jallcom.2022.164950
000118074 0248_ $$2sideral$$a128715
000118074 037__ $$aART-2022-128715
000118074 041__ $$aeng
000118074 100__ $$aFavieres, C.
000118074 245__ $$aVanadium trapped by oblique nano-sheets to preserve the anisotropy in Co–V thin films at high temperature
000118074 260__ $$c2022
000118074 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118074 5203_ $$aIn this study, oriented nano-sheets generated during the growth of cobalt-rich Co–V and Co–Zn thin films induced a large anisotropy in the magnetic and transport properties. The regular nano-sheets were tilted 52–54 deg. with respect to the substrate plane, ˜ 3.0–4.0 nm thick, ˜ 30–100 nm wide, and ˜ 200–300 nm long, with an inter-sheet distance of ˜ 0.9–1.2 nm. In spite of the different microstructures of the two kinds of samples where the Co–V films were amorphous, whereas the Co–Zn films showed a growth of Zn nanocrystals, the oblique nano-sheet morphology conferred noticeable shape anisotropy to both specimens. This anisotropy resulted in an in-plane uniaxial magnetic anisotropy. The changes in the nano-morphology caused by thermal treatments, and hence in their anisotropic properties, were studied. While the Co–V samples retained or increased their magnetic and transport anisotropies, this anisotropic behavior vanished for the annealed Co–Zn films. High resolution transmission electron microscopy, HRTEM, including chemical analysis at the nano-scale, and the dependence of the anisotropic resistance on temperature allowed to establish the nature and the activation energy spectra of the atomic relaxation processes during heating. These processes displayed a single peak at 1.63 eV for the Co–V and two peaks at 1.67 and 2.0 eV for the Co–Zn. These spectra and their singularities were associated to the changes induced in the nano-morphology of the films by thermal treatments. The Co–V films retained their nano-sheet morphology almost up to 500 ºC; the Co–Zn films lost their nano-sheets at 290 ºC. The thermal stability exhibited by the Co–V films makes them useful for applications in ultra high frequency, optical, magnetostrictive and magneto-electric devices.
000118074 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E26$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C1$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-82970-C2-R
000118074 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000118074 590__ $$a6.2$$b2022
000118074 592__ $$a1.079$$b2022
000118074 591__ $$aMETALLURGY & METALLURGICAL ENGINEERING$$b8 / 79 = 0.101$$c2022$$dQ1$$eT1
000118074 593__ $$aMaterials Chemistry$$c2022$$dQ1
000118074 591__ $$aCHEMISTRY, PHYSICAL$$b45 / 161 = 0.28$$c2022$$dQ2$$eT1
000118074 593__ $$aMetals and Alloys$$c2022$$dQ1
000118074 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b91 / 343 = 0.265$$c2022$$dQ2$$eT1
000118074 593__ $$aMechanics of Materials$$c2022$$dQ1
000118074 593__ $$aMechanical Engineering$$c2022$$dQ1
000118074 594__ $$a10.9$$b2022
000118074 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118074 700__ $$aVergara, J.
000118074 700__ $$0(orcid)0000-0002-6761-6171$$aMagén, C.$$uUniversidad de Zaragoza
000118074 700__ $$0(orcid)0000-0003-0681-8260$$aIbarra, M.R.$$uUniversidad de Zaragoza
000118074 700__ $$aMadurga, V.
000118074 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000118074 773__ $$g911 (2022), 164950 [12 pp.]$$pJ. alloys compd.$$tJOURNAL OF ALLOYS AND COMPOUNDS$$x0925-8388
000118074 8564_ $$s6327566$$uhttps://zaguan.unizar.es/record/118074/files/texto_completo.pdf$$yVersión publicada
000118074 8564_ $$s2676860$$uhttps://zaguan.unizar.es/record/118074/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118074 909CO $$ooai:zaguan.unizar.es:118074$$particulos$$pdriver
000118074 951__ $$a2024-03-18-13:25:45
000118074 980__ $$aARTICLE