Spectral evidence for the importance of single-site effects in heavy-fermion uranium materials

The 5f spectral weights in the heavy-fermion alloy system U/sub x/Y/sub 1-//sub x/Al2 (x = 0.1,0.02) have been measured by resonant photoemission. The major features of the spectra of the dilute systems are identical to those for x = 1, showing that single-site effects dominate the large--energy-sca...

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1987-07, Vol.59 (4), p.493-496
Hauptverfasser: Kang, J, Allen, JW, Maple, MB, Torikachvili, MS, Pate, B, Ellis, W, Lindau, I, I
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Sprache:eng
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Zusammenfassung:The 5f spectral weights in the heavy-fermion alloy system U/sub x/Y/sub 1-//sub x/Al2 (x = 0.1,0.02) have been measured by resonant photoemission. The major features of the spectra of the dilute systems are identical to those for x = 1, showing that single-site effects dominate the large--energy-scale features of the spectrum even in the concentrated system.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.59.493