Charge dynamics of Ce-based compounds: Connection between the mixed valent and Kondo-insulator states

被引：24

作者：

Bucher, B

Schlesinger, Z

Mandrus, D

Fisk, Z

Sarrao, J

DiTusa, JF

Oglesby, C

Aeppli, G

Bucher, E

机构：

[1] IBM CORP, THOMAS J WATSON RES CTR, YORKTOWN HTS, NY 10958 USA

[2] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA

[3] AT&T BELL LABS, MURRAY HILL, NJ 07974 USA

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.53.R2948

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reflectivities of the mixed-valent compounds CeSn3 and CePd3 have been measured to obtain the optical conductivity as a function of temperature. Both compounds show a renormalization of the low-energy Drude conductivity at low temperatures. In addition, for the low-carrier-density compound CePd3, but not for high-carrier-density CeSn3, substantial spectral weight lost from the conductivity below 1000 cm(-1) reappears in the frequency range 2000-10 000 cm(-1), indicating that CePd3 can be considered a lightly doped Kondo insulator.

引用

页码：R2948 / R2951

页数：4

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