Open AccessSTUDIES OF THE MAGNETIC PROPERTIES AND 57Fe CONV-ERSION ELECTRON M?SSBAUER SPECTRUM OF THE MATELLIC Fe/Pd SUPERLATTICES
Author(s) -
Min Li,
Mei Liang-Mo
Publication year - 1992
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.41.1361
Subject(s) - superlattice , condensed matter physics , materials science , curie temperature , magnetization , electron , polarization (electrochemistry) , mössbauer spectroscopy , spin polarization , saturation (graph theory) , mössbauer effect , ferromagnetism , chemistry , magnetic field , crystallography , physics , quantum mechanics , mathematics , combinatorics
The structural and magnetic properties of the two sources deposited Fe/Pd superlattices were studied. The samples were prepared by keeping the thickness of Pd layers dpd at 30? and varying dFe from 56 to 5.7?. The reduced saturation magnetization of Fe/Pd superlatti-ces, σt increased with the decrease of dFe this was due to the polarization effect of Pd. The effective thickness of polarization effect dpd was found as about 10? at 0K. The temperature dependence of magnetization followed Bloch T3/2 law in the range of 7-300K. and the spin-wave stiffness constant B increased with the decrease of dFe The Curie temperature, Tc decreased with dFe The 57Fe conversion electron M?ssbauer spectrum illustrated that the polarization effect existed among the layers, and there were no magnetic enhancing effect and "dead layer effect" on the Fe atoms at the interfaces.