Temperature Dependence of Microwave Loss, Electronic Transport and Magnetic Parameters in Polycrystalline Perovskite Manganites - Evidence that the Magnetic and the Metal-Insulator Transitions are not Identical
S. I. Patil, S. M. Bhagat, Kristy Enckson, Chris Lanci, S. E. Lofland, M. S. Sahasrabudhe, S. N. Sadakale
Abstract
Measurements of the variation with temperature of the dc resistivity, ac susceptibility, dc magnetization and microwave loss for several systems of pseudo-cubic manganites reveal that the characteristic temperatures delineated by the various properties can be very The observations further suggest that both the transitions are percolative in nature and therefore there is no a priori reason for them to be identical.
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