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Journal of Superconductivity and Novel Magnetism

, Volume 32, Issue 11, pp 3535–3540 | Cite as

Easy Controlled Properties of Quaternary FeNiCrCd Thin Films Deposited from a Single dc Magnetron Sputtering Under the Influence of Deposition Rate

  • Hakan KöçkarEmail author
  • Özgür Şenturk
  • Ali Karpuz
  • Oznur Karaagac
  • Nadir Kaplan
  • Hilal Kuru
Original Paper
  • 152 Downloads

Abstract

The quaternary FeNiCrCd thin films were produced from a single FeNiCrCr source on a commercial flexible polymer substrate using one dc magnetron sputtering technique. For that, a series of the films with a thickness of 50 nm were produced at different deposition rates of 0.02, 0.04, 0.06, and 0.08 nm/s, separately. In this study, as far as concerned, this was the first time that structural and magnetic properties of FeNiCrCd thin films were investigated. According to compositional analysis, the Fe and Cr contents slightly decreased with increasing deposition rate while Ni was almost constant, whereas those of the amount of Cd atoms increased. However, the atomic amounts of Fe and Cd in the films are quite different from those of the source material. The change of the atomic contents in the films from the source may be attributed to the relatively different bond energy/melting point of metals which have different contents sputtered from source material since this physical parameter is very significant for the sputtering process. For crystal structural analysis, a combination of hexagonal close-packed (hcp) and body-centered cubic (bcc) were observed. The peak intensity of the bcc-dominated planes decreased while the hcp-dominant plane increased since the change in peak intensities is compatible with the compositional analysis with increasing deposition rate. And, the grain sizes decreased gradually from 40.1 to 23.4 nm, with increasing deposition rate from 0.02, to 0.08 nm/s. Also, the film surfaces transformed from a rough to smooth surfaces with decreasing grain sizes as deposition rate increased. For magnetic analysis, the saturation magnetization Ms values decreased as 1030, 773, 730, and 217 emu/cm3 with increasing deposition rate as 0.02, 0.04, 0.06, and 0.08 nm/s, respectively. In the same manner, the coercivity Hc values were found as 11, 7, 6, and 2 Oe with the deposition rate of 0.02, 0.04, 0.06, and 0.08 nm/s, respectively. The decrease of the Hc may have primarily come from the transformation of rough to smooth surface of the films. It may also be said that the films showed soft magnetic properties due to their low Hc values with increasing deposition rate. Thus, the magnetic properties of the quaternary FeNiCrCd alloy films were seen to be easily improved with the deposition rate parameter for potential use in different industrial applications.

Keywords

Quaternary FeNiCrCd thin films dc sputtering technique Thin films Magnetic properties, structural properties 

Notes

Acknowledgements

The authors are very grateful to the Selçuk University, Advanced Technology Research & Application Center for the SEM and EDX analysis, and the Karamanoglu Mehmetbey University, Scientific and Technological Researches Application and Research Center for XRD measurements.

Funding information

This work was financially supported by Balikesir University Research Grant No. BAP 2018/107. Also, it was financially supported by the State Planning Organization/Turkey under grant no. 2005K120170 for Sputtering and VSM systems.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Physics DepartmentBalikesir UniversityBalikesirTurkey
  2. 2.Physics DepartmentKaramanoglu Mehmetbey UniversityKaramanTurkey

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