TY - JOUR
T1 - Charge ordering effect of electronic structure of Yb4(As 1-xSbx)3
AU - Kimura, Shinichi
AU - Nishi, Tatsuhiko
AU - Okuno, Mitsuru
AU - Iwata, Hideki
AU - Aoki, Hidekazu
AU - Ochiai, Akira
PY - 2002/12/1
Y1 - 2002/12/1
N2 - The change of the electronic structure near the Fermi level of Yb 4As3 due to the charge ordering is examined by measuring the temperature dependence of reflectivity spectra of Yb4(As 1-xSbx)3, (x = 0,0.12,0.24) in the photon energy range of 2 meV - 1.5 eV. In the optical conductivity spectra, a peak commonly appears at 0.4 eV below the temperature that is a little higher than the charge ordering temperature. Its intensity increases as the temperature decreases. The peak intensity indicates the ratio of the charge-ordered state for the whole because it originates from the optical transition to the Yb 5d band in the charge-ordered state.
AB - The change of the electronic structure near the Fermi level of Yb 4As3 due to the charge ordering is examined by measuring the temperature dependence of reflectivity spectra of Yb4(As 1-xSbx)3, (x = 0,0.12,0.24) in the photon energy range of 2 meV - 1.5 eV. In the optical conductivity spectra, a peak commonly appears at 0.4 eV below the temperature that is a little higher than the charge ordering temperature. Its intensity increases as the temperature decreases. The peak intensity indicates the ratio of the charge-ordered state for the whole because it originates from the optical transition to the Yb 5d band in the charge-ordered state.
KW - Yb(AsSb), charge ordering, optical conductivity
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M3 - Article
AN - SCOPUS:70349507668
SN - 0031-9015
VL - 71
SP - 300
EP - 302
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - SUPPL.
ER -