2001
DOI: 10.1103/physrevb.63.115107
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Characteristic temperature dependence of the4foccupancy in the Kondo systemCeSi2

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Cited by 13 publications
(7 citation statements)
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“…Considering the surface effects in the special case of CeSi 2 , which has the highest T K of all Ce systems investigated in this work, one should note that the published Kondo temperatures, including the values from spectroscopy methods, differ significantly in a range of T K ≈ 22 K to 140 K; 37,51,78,81,82 the given Kondo temperatures of the other compounds have a comparatively small scatter. This leads to the impression that CeSi 2 can be regarded as borderline system between γ-Ce-and α-Ce like materials, in which the difference between the hybridization strengths at the surface (or surface near region) and the bulk becomes evident.…”
Section: Quantitative Spectral Analysis: Fitting With Ncamentioning
confidence: 90%
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“…Considering the surface effects in the special case of CeSi 2 , which has the highest T K of all Ce systems investigated in this work, one should note that the published Kondo temperatures, including the values from spectroscopy methods, differ significantly in a range of T K ≈ 22 K to 140 K; 37,51,78,81,82 the given Kondo temperatures of the other compounds have a comparatively small scatter. This leads to the impression that CeSi 2 can be regarded as borderline system between γ-Ce-and α-Ce like materials, in which the difference between the hybridization strengths at the surface (or surface near region) and the bulk becomes evident.…”
Section: Quantitative Spectral Analysis: Fitting With Ncamentioning
confidence: 90%
“…9 (d) gives the temperature dependence of n f as extracted from an XAS experiment at the Ce L 3 edge of CeSi 2 . 78 Although the shape of both curves is very similar, the XAS values are typically 0.01-0.03 smaller than the NCA numbers. The authors in Ref.…”
Section: Quantitative Spectral Analysis: Fitting With Ncamentioning
confidence: 92%
See 1 more Smart Citation
“…Now we determine quantitatively the valence of Eu for the parent and Ce-doped EuBiS 2 F by fitting the XANES spectra to an arctangent step function and a Lorentzian peak for each valence state. The mean valence was determined by using a widely used method 24,25 :…”
Section: Resultsmentioning
confidence: 99%
“…There is an ongoing interest in the electronic structure of the intermetallic compounds CeSi 2 and CeSi in the context of intermediate-valency, Kondo-lattice and heavy-fermion phenomena. Most of the information comes from various high-energy spectroscopies with high resolution [5][6][7][8]. In these compounds weak hybridization occurs between the 4f and conduction-band states, preferentially with those of p symmetry derived from Si.…”
Section: Introductionmentioning
confidence: 99%