Infrared studies of rare-earth compounds with localized-itinerant dual characteristics (Press Release)
- Release Date
- 03 Apr, 2007
- BL43IR (Infrared Materials Science)
Infrared study of the valence transition compound YbInCu4 has been performed using cleaved samples. Experiments were done using the infrared microscope at the BL43IR of SPring-8. It has been demonstrated that the electronic transition in this compound is indeed a discontinuous, first order transition. In addition, many other rare earth compounds have been studied using infrared spectroscopy. A new universal relation has been found between the dynamical conductivity obtained from the infrared data and the electron hybridization in these compounds. The importance of this latter work has been appreciated by J. Phys. Soc. Jpn. "Paper of Editors' Choice" of the February 2007 issue.
This article is presented in Japanese.
Publication:
"Infrared study of the valence transition compound YbInCu4 using cleaved surfaces"
H. Okamura, T. Michizawa, T. Nanba, and T. Ebihara
Phys. Rev. B 75, 041101(R) (2007), Published 4 January 2007
"Universal scaling in the dynamical conductivity of heavy fermion Ce and Yb compounds"
H. Okamura, et al.
Journal of the Physical Society of Japan, Vol. 76 No. 2, February, 2007, 023703
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