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Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La_{0.95}Sr_{0.05}MnO_3: 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
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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 La_{0.95}Sr_{0.05}MnO_3 within the orthorhombic Jahn-Teller distorted phase. The Dzyaloshinsky-Moriya interaction (~ 1K) results from the tilting of the MnO_6 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 |3z^2-r^2> and |x^2-y^2> states for the real orbital configuration.

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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. 2001-08-30. Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La_{0.95}Sr_{0.05}MnO_3: An ESR Study. https://doi.org/10.1103/physrevb.65.104440

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