Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered
  La_{0.95}Sr_{0.05}MnO_3: An ESR Study

A. A. Mukhin; A. Loidl; A. M. Balbashov; A. Pimenov; A. Urushibara; A.K. Bogush; A.S. Moskvin; D. V. Zakharov; D.I. Khomskii; D.L. Huber; E. Dagotto; E. Granado; E. Saitoh; F. Keffer; F. Moussa; G. Matsumoto; H.-A. Krug von Nidda; J. Deisenhofer; J. Rodriguez-Carvajal; J.-S. Zhou; J.B. Goodenough; K. Tobe; M. Paraskevopoulos; M. Paraskevopoulos; M. Tovar; M. V. Eremin; Myron B. Salomon; P.W. Anderson; Q. Huang; R. M. Eremina; T. Moriya; T. Moriya; T.G. Castner, Jr.; V. A. Ivanshin; V.A. Ivanshin; Y. Murakami; Z.G. Soos

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Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La_{0.95}Sr_{0.05}MnO_3: An ESR Study

Authors: A. A. Mukhin
A. Loidl
A. M. Balbashov
A. Pimenov
A. Urushibara
A.K. Bogush
A.S. Moskvin
D. V. Zakharov
D.I. Khomskii
D.L. Huber
E. Dagotto
E. Granado
E. Saitoh
F. Keffer
F. Moussa
G. Matsumoto
H.-A. Krug von Nidda
J. Deisenhofer
J. Rodriguez-Carvajal
J.-S. Zhou
J.B. Goodenough
K. Tobe
M. Paraskevopoulos
M. Paraskevopoulos
M. Tovar
M. V. Eremin
Myron B. Salomon
P.W. Anderson
Q. Huang
R. M. Eremina
T. Moriya
T. Moriya
Jr. T.G. Castner
V. A. Ivanshin
V.A. Ivanshin
Y. Murakami
Z.G. Soos
Publication date: 30 August 2001
Publisher: 'American Physical Society (APS)'
Doi

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.Comment: 12 pages, 6 figure