Mechanisms of the electron paramagnetic resonance line broadening in La1-xCaxMnO3

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Abstract

A complex theoretical approach, summarizing ions-ions, ions-carries, and carriers-lattice couplings, is proposed for modeling and analyzing the electron paramagnetic resonance line broadening in doped manganites. Fitting the above model to the experimental data supports the applicability of our approach. The results obtained on single crystals and ceramics of prototypical La 1-xCaxMnO3 system in a wide interval of Ca-dopant concentration (0 x 0.7) evidence that depending on x (i.e., on magnetic ground state and carriers content and mobility) the discussed effect is governed by different mechanisms-mainly ions-ions and/or carriers-lattice spin relaxation.

Original languageEnglish
Article number17D705
JournalJournal of Applied Physics
Volume113
Issue number17
DOIs
StatePublished - 7 May 2013

ASJC Scopus subject areas

  • General Physics and Astronomy

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