An. Pogorilyi et al., Anomalous transport behavior of La0.825Sr0.175MnO3-delta polycrystalline samples below Curie temperature, LOW TEMP PH, 25(1), 1999, pp. 74-75
The temperature (T) dependencies of resistivity (rho(0)) and magnetoresista
nce (MR) in the range of 100-300 K have been investigated in La0.825Sr0.175
MnO3-delta polycrystalline samples with different sintering temperatures T
T-S (1300 degrees C and 1360 degrees C). Two peaks on the rho(0)(T) curve w
ere found in the sample with the lower value of T-S. Inhomogeneity of the s
pin configuration and multiply-connectedness of ferromagnetic phase is beli
eved to give rise to anomalous behavior of resistivity below the Curie temp
erature. (C) 1999 American Institute of Physics. [S1063-777X(99)01401-2].