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Valence band electr...
Valence band electronic structure of Nd1-xYxMnO3 using X-ray absorption, photoemission and GGA plus U calculations
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Balasubramanian, Padmanabhan (author)
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Nair, Harikrishnan. S. (author)
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Tsai, H. M. (author)
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- Bhattacharjee, Satadeep (author)
- Uppsala universitet,Materialteori
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Liu, M. T. (author)
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Yadav, Ruchika (author)
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Chiou, J. W. (author)
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Lin, H. J. (author)
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Pi, T. W. (author)
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Tsai, M. H. (author)
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Elizabeth, Suja (author)
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Pao, C. W. (author)
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Wang, B. Y. (author)
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Chuang, C. H. (author)
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Pong, W. F. (author)
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
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In: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048 .- 1873-2526. ; 189, s. 51-55
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The electronic structures of Nd1-xYxMnO3 (x=0-0.5) were studied using X-ray absorption near-edge structure (XANES) at the Mn L-3,L-2- and O K-edge along with valence-band photoemission spectroscopy (VB-PES). The systematic increase in white-line intensity of the Mn L-3,L-2-edge with doping, suggests a decrease in the occupancy of Mn 3d orbitals. The O K-edge XANES shows a depletion of unoccupied states above the Fermi energy. The changes in the O K-edge spectra due to doping reflects an increase in the Jahn-Teller distortion. The VB-PES shows broadening of the features associated with Mn 3d and O 2p hybridized states and the shift of these features to a slightly higher binding energy in agreement with our GGA + U calculations. The system shows a net shift of the occupied and unoccupied states away from the Fermi energy with doping. The shift in theoretical site-projected density of states of x=0.5 composition with respect to x=0 suggest a subtle change from a charge transfer to Mott-Hubbard type insulator. (C) 2013 Elsevier B.V. All rights reserved.
Keyword
- X-ray absorption
- Photoemission
- Density of states
- Strongly correlated systems
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Balasubramanian, ...
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Nair, Harikrishn ...
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Tsai, H. M.
-
Bhattacharjee, S ...
-
Liu, M. T.
-
Yadav, Ruchika
-
show more...
-
Chiou, J. W.
-
Lin, H. J.
-
Pi, T. W.
-
Tsai, M. H.
-
Elizabeth, Suja
-
Pao, C. W.
-
Wang, B. Y.
-
Chuang, C. H.
-
Pong, W. F.
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show less...
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Journal of Elect ...
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Uppsala University