Issue 40, 2014
From the journal:

CrystEngComm

Tuning the magnetic properties of FeCo by pulsed DC magnetron sputtering†

M. Abuín,*ab   L. Pérez,bc   A. Mascaraquebc  and  M. Maicasd  

* Corresponding authors

a CEI Campus Moncloa, UCM-UPM, 28040 Madrid, Spain
E-mail: m.abuin@fis.ucm.es

b Dpto. de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain

c Unidad Asociada IQFR(CSIC)-UCM, Madrid 28040, Spain

d Institute for Systems based on Optoelectronics and Microtechnology (ISOM), Universidad Politécnica de Madrid, 28040 Madrid, Spain

Abstract

We report a comparison of the magnetic properties of Fe53CO47 grown with DC and pulsed DC (PDC) sputtering sources. While no remarkable differences concerning the structure and composition are found, films grown using the PDC source exhibit reduced coercivity by several times compared to the samples grown using the DC source under similar conditions. In addition, PDC films exhibit hard axis rocking effects and a better defined anisotropy axis. By means of EXAFS, we have measured the atomic distances in the FeCo matrix and bcc-Co clusters. We show that the small changes within the FeCo matrix are directly related to the reduction in coercivity. The tuning of these properties by simply choosing the source or the power opens a simple path to tailor the magnetic properties.

Graphical abstract: Tuning the magnetic properties of FeCo by pulsed DC magnetron sputtering

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Article information

DOI
https://doi.org/10.1039/C4CE01112K
Article type
Paper
Submitted
30 May 2014
Accepted
15 Aug 2014
First published
18 Aug 2014

CrystEngComm, 2014,16, 9528-9533

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Tuning the magnetic properties of FeCo by pulsed DC magnetron sputtering

M. Abuín, L. Pérez, A. Mascaraque and M. Maicas, CrystEngComm, 2014, 16, 9528 DOI: 10.1039/C4CE01112K

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