Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La0.95Sr0.05MnO3: An ESR Study
J. Deisenhofer, M. V. Eremin, D. V. Zakharov, V. A. Ivanshin, R. M. Eremina, H. -A. Krug von Nidda, A. A. Mukhin, A. M. Balbashov, A. Loidl
Abstract
We present a comprehensive analysis of Dzyaloshinsky-Moriya interaction and crystal-field parameters using the angular dependence of the paramagnetic resonance shift and linewidth in single crystals of La0.95Sr0.05MnO3 within the orthorhombic Jahn-Teller distorted phase. The Dzyaloshinsky-Moriya interaction (~ 1K) results from the tilting of the MnO6 octahedra against each other. The crystal-field parameters D and E are found to be of comparable magnitude (~ 1K) with D ~= -E. This indicates a strong mixing of the |3z2-r2> and |x2-y2> states for the real orbital configuration.
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