Ultrasonic studies of the heavy fermion compounds
- Univ. of Wisconsin, Milwaukee (United States)
- Northwestern Univ., Evanston, IL (United States)
A review of ultrasonic measurements on the three heavy fermion compounds UPt[sub 3], URu[sub 2]Si[sub 2] and CeCu[sub 6] is given. These compounds show one or more of the three types of co-operative behavior; Kondo-like effect, antiferromagnetism and superconductivity; all these features are observed as ultrasonic anomalies. Both UPt[sub 3] and CeCu[sub 6] show a strong coherence effect which is akin to a Kondo-like transition in the electronic system. Velocity anomalies are found at the antiferromagnetic transition for URu[sub 2]Si[sub 2]. UPt[sub 3] also has an antiferromagnetic transition which is believed to influence the subsequent superconducting ordering. For UPt[sub 3], the superconductivity is of an unconventional nature; multiple superconducting phases were observed and a complete phase diagram was obtained from high resolution velocity measurements.
- OSTI ID:
- 7019235
- Report Number(s):
- CONF-9206305--Pt.1
- Journal Information:
- Journal of Low Temperature Physics; (United States), Journal Name: Journal of Low Temperature Physics; (United States) Vol. 89:1-2; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
360107 -- Metals & Alloys-- Superconducting Properties-- (1992-)
ACOUSTIC TESTING
ACTINIDE ALLOYS
ALLOYS
ANTIFERROMAGNETISM
CERIUM ALLOYS
COPPER ALLOYS
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
MAGNETISM
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
RARE EARTH ALLOYS
RUTHENIUM ALLOYS
SILICON ALLOYS
SUPERCONDUCTIVITY
TESTING
ULTRASONIC TESTING
URANIUM ALLOYS