La-Zn doped SrM ferrite for high-density magnetic recording

Authors
Bai, JM Liu, XX Xu, H Wei, FL Yang, Z
Citation
Jm. Bai et al., La-Zn doped SrM ferrite for high-density magnetic recording, ACT PHY C E, 49(8), 2000, pp. 1595-1599
Citations number
20
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA SINICA
ISSN journal
10003290 → ACNP
Volume
49
Issue
8
Year of publication
2000
Pages
1595 - 1599
Database
ISI
SICI code
1000-3290(200008)49:8<1595:LDSFFH>2.0.ZU;2-U
Abstract
La-Zn doped M type Sr-ferrite thin films with various doping concentration were prepared by conventional rf diode sputtering. La-Zn doping reduces the grain growth rate, so that fine grains with mean grain size about 12nm wer e prepared with superior magnetic properties. It is found that suitable amo unt of La-Zn substitution may increase the M-s of the films, and modify the temperature coefficient of coercivity, while H-c increases with increasing concentration of La-Zn.