Open AccessStudy on magnetic transition behavior for (Pr1－yNdy)2/3Sr1/3MnO3 system under superposed fields
Author(s) -
Baojuan Kang,
Shixun Cao,
Xinyan Wang,
Lingwei Li,
Wenfeng Li,
Fen Liu,
Gaoping Cao,
Liming Yu,
Chao Jing,
Jincang Zhang
Publication year - 2005
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.54.902
Subject(s) - condensed matter physics , magnetic field , manganite , magnetization , materials science , magnetic susceptibility , crystallite , nuclear magnetic resonance , physics , ferromagnetism , quantum mechanics , metallurgy
The magnetic transition behaviors of (Pr1-yNdy)2/3Sr 1/3MnO3(y=2/8,4/8,6/8) polycrystalline samples under superposed ma gnetic fields (i.e., the superposed ac and dc magnetic field) were systematicall y studied at temperatures ranging from 42 to 300K. The results showed that the magnetization increases with the increase of magnetic field, and the real part of the ac susceptibility decreases as the superposed dc magnetic field increases . Under the superposed magnetic field, a characteristic sharp peak of the real p art of the susceptibility appears near the magnetic transition temperature (Curi e temperature). For the (Pr1-yNdy)2/3Sr1/3MnO 3 system, as the Nd content increases, the peak temperature of the relative variation of the real part of susceptibility (Eχ′=Δχ′/χ′ dc) decreases, in consistent with that of the magnetoresistivity of this sys tem. The magnetic transition behaviors under superposed magnetic fields for the manganite systems are discussed.