eprintid: 143
rev_number: 7
eprint_status: archive
userid: 4
dir: disk0/00/00/01/43
datestamp: 2013-03-27 06:27:03
lastmod: 2013-04-01 06:59:25
status_changed: 2013-03-27 06:27:03
type: article
metadata_visibility: show
creators_name: Danh, T.M.
creators_name: Duc, N.H.
creators_name: Thanh, H. N.
creators_name: Teillet, J.
creators_id: danhtm@vnu.edu.vn
creators_id: ducnh@vnu.edu.vn
title: Magnetic, Mossbauer and magnetostrictive studies of amorphous Tb(Fe0.55Co0.45)1.5 films
ispublished: pub
subjects: Nano
subjects: Phys
divisions: fac_physic
keywords: Mossbauer effect;X-ray diffraction;amorphous magnetic materials;annealing;cobalt alloys;hyperfine interactions;iron alloys;magnetic moments;magnetic thin films;magnetostriction;metallic thin films;noncrystalline structure;perpendicular magnetic anisotropy;sputtered coatings;terbium alloys;6143Dq;6855-a;7170Jp;7530Cr;7530Gw;7550Kj;7570Ak;7580+q;7680+y;8105Bx;8140Gh;8140Rs
abstract: The Tb(Fe0.55Co0.45)1.5 films were fabricated by rf magnetron sputtering from a composite target. Samples were investigated by means of x-ray diffraction, vibrating sample magnetometer, conversion electron Mössbauer spectra, and magnetostriction measurements. The as-deposited film is an amorphous alloy with a perpendicular magnetic anisotropy and an intrinsic magnetostriction λ=1080×10-6 in an applied field of 0.7 T. In this state, it was determined that the hyperfine field Bhf=23.5 T and the cone-angle between the Fe moment direction and the film-normal direction β=12°. After annealing in the temperature range of TA=250–450 °C the amorphous structure still remained, however the anisotropy was changed to a parallel one. The soft magnetostrictive behavior has also been improved by these heat treatments: the parallel magnetostriction λ||=465×10-6 was almost developed in low applied fields of less than 0.1 T and, especially, a huge magnetostrictive susceptibility χλ=dλ||/d(μ0H)=1.8×10-2 T-1 was obtained at μ0H=15 mT. © 2000 American Institute of Physics.
date: 2000
date_type: published
full_text_status: none
publication: Journal of Applied Physics
volume: 87
number: 10
pagerange: 7208-7212
refereed: TRUE
citation:   Danh, T.M. and Duc, N.H. and Thanh, H. N. and Teillet, J.  (2000) Magnetic, Mossbauer and magnetostrictive studies of amorphous Tb(Fe0.55Co0.45)1.5 films.  Journal of Applied Physics, 87  (10).   pp. 7208-7212.