Open AccessMAGNETIC AND ELECTRONIC PROPERTIES OF TbFe2 AMORPHOUS FILM
Author(s) -
Zheng De-Juan,
Zhenxi Wang,
Zhang Dianlin,
Lin Shuyuan,
Liu Lian-Fan,
Cai Yan-Huang,
Xia Ke-Ding
Publication year - 1982
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.31.185
Subject(s) - materials science , electrical resistivity and conductivity , curie temperature , amorphous solid , condensed matter physics , ferromagnetism , saturation (graph theory) , hyperfine structure , magnetization , mössbauer spectroscopy , temperature coefficient , analytical chemistry (journal) , sputtering , magnetoresistance , nuclear magnetic resonance , magnetic field , thin film , crystallography , chemistry , atomic physics , physics , composite material , nanotechnology , mathematics , quantum mechanics , combinatorics , chromatography
We have studied magnetic and electrical properties of TbFe2 amorphous film prepared by R. F. sputtering. Saturation magnetization Ms(T) (77-800K), electrical resistivity ρ(T) (4.2-400K) and M?ssbauer spectra (18K, 400K) measurements were made. We obtained the Curie temperature (Tc400K), temperature of the resistivity minimum (Tmin360K) and the negative temperature coefficient of resistivity. M?ssbauer spectra at room temperature were resolved using both of the method of Hesse and that of Window. The hyperfine field distributions obtained by both methods are in good agreement. There are two distributions at H=210 kOe and H=25 kOe respectively. The first is consistent with ferromagnetism and the second is probably associated with Kondo-type resistance minimum. The M?ssbauer effect results indicate that the spin of the iron ion is also subjected to a local anisotropy field of random orientation. This result is consistent with the Harris model.