Relaxation-time enhancement in the heavy-fermion system CePd/sub 3/

Journal Article · Mon Jan 18 00:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.216· OSTI ID:5620848

Beyermann, W P; Gruener, G; Dalichaouch, Y; Maple, M B

Frequency-dependent conductivity measurements are reported in the dc to 150-GHz range in the moderately heavy-fermion compound CePd/sub 3/. A Drude expression is found with a renormalized relaxation time tau/sup */, and a renormalized plasma frequency ..omega../sub p//sup */ at low temperatures. This experiment represents the first direct measurement of these quantities, and the enhanced mass obtained from the frequency-dependent conductivity compares favorably with that determined from thermodynamic measurements.

• Research Organization: Department of Physics and Solid State Science Center, University of California, Los Angeles, California 90024
• OSTI ID: 5620848
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 60:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERIUM ALLOYS
ELECTRON-PHONON COUPLING
RELAXATION
PALLADIUM ALLOYS
AUGMENTATION
EFFECTIVE MASS
ELECTRIC CONDUCTIVITY
FREQUENCY DEPENDENCE
GHZ RANGE 01-100
GHZ RANGE 100-1000
HEAVY LEPTONS
LOW TEMPERATURE
MANY-BODY PROBLEM
MEDIUM TEMPERATURE
RENORMALIZATION
SOLID-STATE PLASMA
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
ALLOYS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FERMIONS
FREQUENCY RANGE
GHZ RANGE
LEPTONS
MASS
PHYSICAL PROPERTIES
PLASMA
PLATINUM METAL ALLOYS
POSTULATED PARTICLES
RARE EARTH ALLOYS
360104* - Metals & Alloys- Physical Properties