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Energy transfer by exciton-polarons in RbMnF3

URN to cite this document:
urn:nbn:de:bvb:355-epub-268081
Wünsch, Friedrich ; Gerhardt, V. ; Gebhardt, Wolfgang
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Date of publication of this fulltext: 23 Nov 2012 13:55


Abstract

Energy transfer in RbMnF3 was studied by time-resolved spectroscopy of the 4T1g-exciton luminescence. The threefold orbital degeneracy of the 4T1g-state is lifted by a Jahn-Teller coupling to eg-modes. The JT-effect leaves an orientational degeneracy of distorted MnF6-octahedra, which is lifted by application of uniaxial stress. The dynamics of exciton and trap luminescence after pulse excitation ...

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