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Orbital Ordering Effect on Magnetic Resonance Spectra in Charge-Ordered and Frustrated Manganites


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Abstract

A theoretical study of the interrelation of the crystal structure, charge, orbital, and magnetic subsystems in R1 – xAxMnO3 charge-ordered manganites has been carried out (where R3+ is the rare earth ion, A2+ is the alkaline earth metal ion, x = 0.5, 2/3). The model of orbital-dependent exchange interactions and single-ion anisotropy is used. The presence of quasi-low-dimensional magnetic structures is exhibited. The spin waves spectra and antiferromagnetic resonance spectra are calculated.

About the authors

L. E. Gonchar

Ural State University of Railway Transport; Ural Federal University Named after the First President of Russia B.N. Yeltsin

Author for correspondence.
Email: l.e.gonchar@urfu.ru
Russian Federation, Yekaterinburg; Yekaterinburg

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