FePt:SiO₂ granular thin film for high density magnetic recording

Authors

C.P. Luo, University of Nebraska - Lincoln
Sy_Hwang Liou, University of Nebraska-LincolnFollow
David J. Sellmyer, University of Nebraska-LincolnFollow

Date of this Version

May 2000

Comments

Published by American Institute of Physics. J. Appl. Phys. 87, 6941 (2000). © 2000 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.

Abstract

Nanocomposite FePt:SiO₂ thin films consisting of high anisotropy FePt particles embedded in a SiO₂ matrix have been successfully fabricated by annealing the as-deposited FePt/SiO₂ multilayers. By adjusting the annealing temperatures and compositions, films were obtained with coercivity of 3.8 kOe and grain size of 10 nm, which are suitable for high-density magnetic recording. Magnetic activation volumes were measured and thermal stability is discussed.