Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-23T04:36:59.740Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of substrate temperature and post annealing on morphology and magnetic properties of pulsed laser deposited Fe50-Ni50 films.

Published online by Cambridge University Press:  24 October 2014

Sally A. Ibrahim ,
Svitlana Fialkova ,
Kwadwo Mensah-Darkwa ,
Sergey Yarmolenko  and
Dhananjay Kumar
Sally A. Ibrahim
Affiliation:
North Carolina A&T State University, 1601 E. Market St. Greensboro, North Carolina, 27411, U.S.A.
Svitlana Fialkova
Affiliation:
North Carolina A&T State University, 1601 E. Market St. Greensboro, North Carolina, 27411, U.S.A.
Kwadwo Mensah-Darkwa
Affiliation:
North Carolina A&T State University, 1601 E. Market St. Greensboro, North Carolina, 27411, U.S.A.
Sergey Yarmolenko
Affiliation:
North Carolina A&T State University, 1601 E. Market St. Greensboro, North Carolina, 27411, U.S.A.
Dhananjay Kumar
Affiliation:
North Carolina A&T State University, 1601 E. Market St. Greensboro, North Carolina, 27411, U.S.A.
Get access

Abstract

As the need for smaller data storage devices in the market continues to grow, the study of new combinations of self-assembled magnetic nanoparticles/films is greatly needed. In this research, Fe50-Ni50 films were synthesized using a Pulsed Laser Deposition technique. The films were analyzed using scanning electron microscopy (SEM), atomic force microscopy (AFM) and physical properties measurement system (PPMS). Films were deposited from Fe-Ni alloy target (50%-50% composition), deposition was conducted in vacuum, at substrate temperatures varying from liquid nitrogen temperature -196°C to 600°C. The films were annealed in a vacuum chamber at 600°C for 1 hour. The study reveals that the substrate temperature has significant effect on the structure of the films and their magnetic properties. It was shown that additional thermal treatment improved the quality of films in terms of narrow grain size distribution. Magnetic properties were also found to improve significantly after post annealing process.

Keywords

annealingmagnetic propertiesthin film
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1675: Symposium K/RR – Synthesis, Characterization and Applications of Functional Materials—Thin Films and Nanostructures , 2014 , pp. 129 - 136
Copyright
Copyright © Materials Research Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Brauer, J.R., Magnetic Actuators and Sensors. Wiley - IEEE Press.Google Scholar
Frey, N.A. and Sun, S., Magnetic Nanoparticle for Information Storage Applications. Inorganic Materials, 2010: p. 33–68.Google Scholar
Wang, Z., et al. ., The influence of layer thickness and post annealing on magnetism of pulsed laser deposited ZnO/Co multilayers. Journal of Magnetism and Magnetic Materials, 2013. 345(0): p. 41–47.CrossRefGoogle Scholar
Callister, William D., D.G.R., Materials Science and Engineering: An Introduction. 8th Edition ed. 2009: John Wiley & Sons, Inc.Google Scholar
Chrisey, D.B. and Hubler, G.K., Pulsed laser deposition of thin films. Pulsed Laser Deposition of Thin Films, by Chrisey, Douglas B. (Editor), Hubler, Graham K. (Editor), pp. 648. ISBN 0-471-59218-8. Wiley-VCH, May 2003., 2003. 1.Google Scholar
Kotsugi, M., et al. ., Structural, magnetic and electronic state characterization of L1 0-type ordered FeNi alloy extracted from a natural meteorite. Journal of Physics: Condensed Matter, 2014. 26(6): p. 064206.Google ScholarPubMed