Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
6
From page :
171
To page :
176
Abstract :
The magnetic and transport properties of La1−xCaxMnO3 (0≤x<0.4) have been systematically studied. The magnetoresistance (MR) maximum appears at x=0.2–0.25 and the temperature dependence of MR for x>0.25 shows a much broader profile than that of samples for x=0.2–0.25. Based on a scenario in which there is a short-range charge ordering (CO) state coexisting in the ferromagnetic state matrix for x>0.25, and the least or even no short-range CO state exists in samples for x=0.2–0.25, the above observations can be understood.
Journal title :
Acta Tropica
Serial Year :
2003
Journal title :
Acta Tropica
Record number :
1747988
Link To Document :
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