Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12

T. Susaki, T. Konishi, A. Sekiyama, Takashi Mizokawa, A. Fujimori, T. Iwasaki, S. Ueda, T. Matsushita, S. Suga, H. Ishii, F. Iga, M. Kasaya

Research output: Contribution to journalArticle

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Abstract

We have studied the effect of Lu substitution on the Kondo insulator YbB12 by high-resolution photoemission. Comparison of the spectra of YbB12, Yb0.5Lu0.5B12, and LuB12 reveals that the density of states (DOS) of the B sp-derived conduction band near the Fermi level is reduced in YbB12 over a rather wide (∼ 40 meV) energy region. Lu substitution (i) recovers the reduced B sp DOS, (ii) shifts the Yb 4f-derived Kondo peak towards higher binding energy, and (iii) decreases the Yb valence. These results are consistently analyzed using the Anderson-impurity model, and imply interaction between the Yb 4f ions mediated by the Yb 4f-B sp hybridization in YbB12.

Original languageEnglish
Pages (from-to)13727-13730
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number21
Publication statusPublished - 1997 Dec 1
Externally publishedYes

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Electronic states
Substitution reactions
substitutes
Photoemission
Fermi level
Conduction bands
Binding energy
electronics
conduction bands
photoelectric emission
binding energy
insulators
Impurities
Ions
valence
impurities
shift
high resolution
ions
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Susaki, T., Konishi, T., Sekiyama, A., Mizokawa, T., Fujimori, A., Iwasaki, T., ... Kasaya, M. (1997). Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12. Physical Review B - Condensed Matter and Materials Physics, 56(21), 13727-13730.

Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12. / Susaki, T.; Konishi, T.; Sekiyama, A.; Mizokawa, Takashi; Fujimori, A.; Iwasaki, T.; Ueda, S.; Matsushita, T.; Suga, S.; Ishii, H.; Iga, F.; Kasaya, M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 56, No. 21, 01.12.1997, p. 13727-13730.

Research output: Contribution to journalArticle

Susaki, T, Konishi, T, Sekiyama, A, Mizokawa, T, Fujimori, A, Iwasaki, T, Ueda, S, Matsushita, T, Suga, S, Ishii, H, Iga, F & Kasaya, M 1997, 'Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12', Physical Review B - Condensed Matter and Materials Physics, vol. 56, no. 21, pp. 13727-13730.
Susaki T, Konishi T, Sekiyama A, Mizokawa T, Fujimori A, Iwasaki T et al. Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12. Physical Review B - Condensed Matter and Materials Physics. 1997 Dec 1;56(21):13727-13730.
Susaki, T. ; Konishi, T. ; Sekiyama, A. ; Mizokawa, Takashi ; Fujimori, A. ; Iwasaki, T. ; Ueda, S. ; Matsushita, T. ; Suga, S. ; Ishii, H. ; Iga, F. ; Kasaya, M. / Evolution of electronic states in the Kondo alloy system Yb1-xLuxB12. In: Physical Review B - Condensed Matter and Materials Physics. 1997 ; Vol. 56, No. 21. pp. 13727-13730.
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AU - Susaki, T.

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AU - Mizokawa, Takashi

AU - Fujimori, A.

AU - Iwasaki, T.

AU - Ueda, S.

AU - Matsushita, T.

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AU - Iga, F.

AU - Kasaya, M.

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