Open AccessLA-Zn DOPED SrM FERRITE FOR HIGH-DENSITY MAGNETIC RECORDING
Author(s) -
Bai Jian-min,
Xiaoxi Liu,
Huidong Xu,
Fulin Wei,
Zheng Yang
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1595
Subject(s) - materials science , doping , ferrite (magnet) , condensed matter physics , nuclear magnetic resonance , optoelectronics , composite material , physics
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 were prepared with superior magnetic properties. It is found that suitable amount of La-Zn substitution may increase the Ms of the films, and modify the tempareture coefficient of coercivity, while Hc increases with increasing concentration of La-Zn.