A. Barman et al., ELECTRICAL-PROPERTIES OF LA0.6RE0.1CA0.3MN0.3 (RE = PR, SM, GD, DY) AT LOW-TEMPERATURE, Solid state communications, 106(10), 1998, pp. 691-694
We have studied the transport properties of La0.6Re0.1Ca0.3MnO3 (Re =
Pr, Sm, Gd, Dy) at low temperature down to 4.2 K with fixed doping con
centration. The temperature at which the peak resistivity appears, shi
fts to lower temperature as the ionic radii of the rare earth ions dec
rease. The samples exhibit a resistivity minimum at low temperature de
pending on the nature of the substituted rare earth ions. The temperat
ure dependence of resistivity at low temperature has been interpreted
in terms of electron-electron interaction. (C) 1998 Elsevier Science L
td. All rights reserved.