Positive magnetoresistance and orbital ordering in La(1-x)Sr(x)MnO(3)
M. Paraskevopoulos, J. Hemberger, A. Loidl, A. A. Mukhin, V. Yu., Ivanov, A. M. Balbashov
TL;DR
This study investigates the transport properties of La(1-x)Sr(x)MnO(3), revealing giant positive magnetoresistance linked to orbital ordering influenced by superexchange interactions and Jahn-Teller distortions.
Contribution
It provides detailed measurements and explains the origin of positive magnetoresistance in La(1-x)Sr(x)MnO(3) related to orbital ordering mechanisms.
Findings
Giant positive magnetoresistance observed for 0.1<=x<=0.125
Orbital ordering explained by superexchange and Jahn-Teller effects
Transport properties linked to orbital and lattice interactions
Abstract
We report on detailed transprort measurements of single crystalline La(1-x)Sr(x)MnO(3) (x<=0.2). We have found a giantpositive magnetoresistance in the compositions range between 0.1<=x<=0.125 and give an explaination in terms of orbital ordering due to the interplay between superexchange interactions and Jahn-Teller distortions.
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Taxonomy
TopicsMagnetic and transport properties of perovskites and related materials