Cubic phase stabilization in sputter-deposited nanocrystalline copper ferrite thin films with large magnetization

Author

Desai, Mrugesh ; Prasad, Shiva ; Venkataramani, N. ; Samajdar, Indradev ; Nigam, A.K. ; Krishnan, R.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., Mumbai, India

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3012

Lastpage

3014

Abstract

Copper ferrite thin films were prepared using RF sputtering. The films were annealed at various temperatures and subsequently quenched. It was possible to stabilize the cubic phase at room temperature. The magnetization, as a function of annealing temperature, was found to increase monotonically from 1120 G for the as-deposited film to 3550 G for the film quenched from 850°C. The coercivity is found for the as-deposited film and the film quenched from 850°C, to be 70 and 430 Oe, respectively.

Keywords

annealing; coercive force; copper compounds; ferrites; magnetic thin films; magnetisation; nanostructured materials; quenching (thermal); sputtered coatings; 850 C; CuFe₂O₄; RF sputtering; annealing temperature; coercivity; cubic phase stabilization; large magnetization; quenching; sputter-deposited nanocrystalline Cu ferrite thin films; Annealing; Copper; Ferrite films; Magnetic films; Magnetization; Materials science and technology; Radio frequency; Sputtering; Temperature distribution; X-ray scattering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802119

Filename

1042441