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Article overview
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Electronic structures of UTSn (T=Ni, Pd) using photoemission spectroscopy | | J.-S. Kang
; S. C. Wi
; J. H. Kim
; K. A. McEwen
; C. G. Olson
; J. H. Shim
; B. I. Min
; | | Date: |
22 Jul 2003 | | Subject: | Materials Science | cond-mat.mtrl-sci | | Abstract: | The electronic structures of the localized $5f$ systems UTSn (T=Ni, Pd) have been investigated using photoemission spectroscopy (PES). The extracted U $5f$ PES spectra of UTSn (T=Ni, Pd) exhibit a broad peak centered at $sim 0.3$ eV below $
m E_F$ with rather small spectral weight near $
m E_F$ (N$_f$($
m E_F$)). The small N$_f$($
m E_F$) in UTSn is found to be correlated with the T $d$ PES spectra that have a very low density of states (DOS) near $
m E_F$. The high-resolution PES spectra for UTSn provide the V-shaped reduced metallic DOS near $
m E_F$ but do not reveal any appreciable changes in their electronic structures across the magnetic phase transitions. A possible origin for the reduced N$_f$($
m E_F$) in UTSn is ascribed to the hybridization to the very low T $d$ DOS at $
m E_F$. Comparison of the measured PES spectra to the LSDA+$U$ band structure calculation reveals a reasonably good agreement for UPdSn, but not so for UNiSn. | | Source: | arXiv, cond-mat/0307523 | | Services: | Forum | Review | PDF | Favorites | |
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