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26 April 2024 |
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Low-energy V t2g orbital excitations in NdVO3 | | J. Laverock
; B. Chen
; A. R. H. Preston
; D. Newby Jr.
; L. F. J. Piper
; L. D. Tung
; G. Balakrishnan
; P.-A. Glans
; J.-H. Guo
; K. E. Smith
; | | Date: |
17 Nov 2014 | | Abstract: | The electronic structure of NdVO3, YVO3 has been investigated as a function
of sample temperature using resonant inelastic soft x-ray scattering at the V
L3-edge. Most of the observed spectral features are in good agreement with an
atomic crystal-field multiplet model. However, a low energy feature is observed
at ~0.4 eV that cannot be explained by crystal-field arguments. The resonant
behaviour of this feature establishes it as due to excitations of the V t2g
states. Moreover, this feature exhibits a strong sample temperature dependence,
reaching maximum intensity in the orbitally-ordered phase of NdVO3, before
becoming suppressed at low temperatures. This behaviour indicates that the
origin of this feature is a collective orbital excitation, i.e. the bi-orbiton. | | Source: | arXiv, 1411.4539 | | Services: | Forum | Review | PDF | Favorites | |
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