Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
5
From page :
163
To page :
167
Abstract :
The influence of dc current on the resistivity ρ and the Youngʹs modulus E of La0.5Ca0.5MnO3 compound has been investigated by means of an in situ measuring method. At low temperatures, both the resistivity ρ and the relative modulus ΔE increase with the current. A relaxation behavior of ρ to the higher resistive state is observed at a fixed temperature and a constant current. After storing the sample for a few days, ρ decreases with the current, accompanying a slight drop of ΔE at low temperatures. Current-induced effects on ρ and ΔE are interpreted according to the current-induced interwinning of Mn3+O6 octahedral distortion modes between Q2- and Q3-types, which is suggested to contribute to the variation of the resistivity.
Journal title :
Acta Tropica
Serial Year :
2005
Journal title :
Acta Tropica
Record number :
1748912
Link To Document :
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