CHARGE DYNAMICS OF CE-BASED COMPOUNDS - CONNECTION BETWEEN THE MIXED-VALENT AND KONDO-INSULATOR STATES

Authors
BUCHER B SCHLESINGER Z MANDRUS D FISK Z SARRAO J DITUSA JF OGLESBY C AEPPLI G BUCHER E
Citation
B. Bucher et al., CHARGE DYNAMICS OF CE-BASED COMPOUNDS - CONNECTION BETWEEN THE MIXED-VALENT AND KONDO-INSULATOR STATES, Physical review. B, Condensed matter, 53(6), 1996, pp. 2948-2951
Citations number
28
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
6
Year of publication
1996
Pages
2948 - 2951
Database
ISI
SICI code
0163-1829(1996)53:6<2948:CDOCC->2.0.ZU;2-E
Abstract
The reflectivities of the mixed-valent compounds CeSn3 and CePd3 have been measured to obtain the optical conductivity as a function of temp erature. Both compounds show a renormalization of the low-energy Drude conductivity at low temperatures. In addition, for the low-carrier-de nsity compound CePd3, but not for high-carrier-density CeSn3, substant ial spectral weight lost from the conductivity below 1000 cm(-1) reapp ears in the frequency range 2000-10 000 cm(-1), indicating that CePd3 can be considered a lightly doped Kondo insulator.