Open AccessMAGNETIC AND M?SSBAUER SPECTRA STUDY OF YTi(Fe1-xCox)11
Author(s) -
Linshu Kong,
Yang Ying-Chang
Publication year - 1991
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.40.998
Subject(s) - tetragonal crystal system , hyperfine structure , curie temperature , materials science , mössbauer spectroscopy , spectral line , mössbauer effect , analytical chemistry (journal) , condensed matter physics , nuclear magnetic resonance , crystal structure , crystallography , atomic physics , physics , ferromagnetism , chemistry , chromatography , astronomy
YTi(Fe1-xCox)11 crystallizes in the ThMn12-type tetragonal structure, with x ranging from 0.0 to 1.0, the Curie temperature increases with the increase of Co content. In order to understand the relation between magnetic properties and microst-ructure of these compounds, we studied their M?ssbauer spectra. The M?ssbauer effect measurements were carried out at room temperature on YTi(Fe1-xCox)11, with x equal to 0.0, 0.2 and 0.4. The best fits confirm that Co atoms preferentially occupy the j and f sites. The hyperfine fields of the measured samples reach a maximum at x = 0.2,which is in agreement with the results of magnetic measurements. By comparing the experimental results of M?ssbauer spectra of YTi(Fe1-xCox)11, Y2(Fe1-xCox)14B and YTi(Fe1-xNix)11, we analyze the difference of the 3d band structure between YTiFe11, and Y2Fe14B.