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Theory of Raman scattering from orbital excitations in manganese oxides

S. Okamoto, S. Ishihara, S. Maekawa
2002 Physical Review B (Condensed Matter)  

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2001 accepted arXiv:cond-mat/0108032v2 fatcat:fexini6anje3jma5ptkjkfnvzq

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2001 pre-print
arXiv:cond-mat/0108032v1 fatcat:u67ozrfairbxzavnm32xatupfe
We present a theory of the Raman scattering from the orbital wave excitations in manganese oxides. Two excitation processes of the Raman scattering are proposed. The Raman scattering cross section is formulated by using the pseudospin operator for orbital degree of freedom in a Mn ion. The Raman spectra from the orbital wave excitations are calculated and their implications in the recent experimental results reported in LaMnO_3 are discussed.
doi:10.1103/physrevb.66.014435 fatcat:o7xssotvq5defmoeph3k6klwuy
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S. Okamoto, S. Ishihara, S. Maekawa. "Theory of Raman scattering from orbital excitations in manganese oxides." Physical Review B (Condensed Matter) 66.1 (2002)