Study of transport properties in the multi-spin Co-doped La<sub>2/3</sub>Ca<sub>1/3</sub>Mn<sub>1-x</sub>Co<sub>x</sub>O<sub>3</sub> manganites
R R Jia; Q Y Yu; J C Zhang; C Jing; S X Cao; R R Jia; Department of Physics, Shanghai University, Shanghai 200444, PR China; Q Y Yu; Department of Physics, Shanghai University, Shanghai 200444, PR China; J C Zhang; Department of Physics, Shanghai University, Shanghai 200444, PR China; C Jing; Department of Physics, Shanghai University, Shanghai 200444, PR China; S X Cao; Department of Physics, Shanghai University, Shanghai 200444, PR China
Журнал:
Journal of Physics: Conference Series
Дата:
2009-03-01
Аннотация:
A series of Mn-site doping samples La<sub>2/3</sub>Ca<sub>1/3</sub>Mn<sub>1-x</sub>Co<sub>x</sub>O<sub>3</sub>(0 ≤x ≤ 0.15) with an excellent single phase structure have been prepared. The magnetic and transport properties of this system have been systematically investigated. The Curie temperature T<sub>C</sub> decreases gradually and the temperature range of transition becomes wider with the increase of x. The abnormal transport properties induced by Co were doping characterized by the resistivity behavior of double peaks and low temperature minimum.
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