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

共 28 条

[11] TRANSPORT-PROPERTIES OF THE ANDERSON LATTICE [J].

COX, DL ;

GREWE, N .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 71 (03) :321-340

[12] KONDO INSULATORS - ARE SIMPLE THEORIES GOOD ENOUGH [J].

DONIACH, S ;

FU, C ;

TRUGMAN, SA .

PHYSICA B, 1994, 199 :450-453

[13] ELECTRONIC-STRUCTURE OF CEPD3 [J].

HASEGAWA, A ;

YANASE, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1987, 56 (11) :3990-3996

[14] AMBIVALENCE OF YB IN YBAL2 AND YBAL3 [J].

HAVINGA, EE ;

BUSCHOW, KHJ ;

VANDAAL, HJ .

SOLID STATE COMMUNICATIONS, 1973, 13 (05) :621-627

[15]

HILLEBRECHT, 1979, J APPL PHYS, V50, P7567

[16] SPLIT-OFF NARROW D-BAND STATES ABOVE EF IN TRANSITION-METAL ALLOYS [J].

HILLEBRECHT, FU ;

FUGGLE, JC ;

SAWATZKY, GA ;

ZELLER, R .

PHYSICAL REVIEW LETTERS, 1983, 51 (13) :1187-1190

[17] FERMI-SURFACE MEASUREMENTS OF MIXED-VALENCE CESN3 [J].

JOHANSON, WR ;

CRABTREE, GW ;

EDELSTEIN, AS ;

MCMASTERS, OD .

PHYSICAL REVIEW LETTERS, 1981, 46 (07) :504-507

[18] SYSTEMATICS OF VALENCE FLUCTUATING STATES IN F-ELECTRON SYSTEMS [J].

KASUYA, T ;

KASAYA, M ;

TAKEGAHARA, K ;

IGA, F ;

LIU, B ;

KOBAYASHI, N .

JOURNAL OF THE LESS-COMMON METALS, 1987, 127 :337-347

[19] BANDS AND INTERBANDS IN LAPD3 AND CEPD3 [J].

KOENIG, C ;

KHAN, MA .

PHYSICAL REVIEW B, 1988, 38 (09) :5887-5898

[20] 2 ENERGY SCALES IN CEPD3 [J].

LAWRENCE, JM ;

THOMPSON, JD ;

CHEN, YY .

PHYSICAL REVIEW LETTERS, 1985, 54 (23) :2537-2540

← 1 2 3 →