Heavy fermion behavior in CePtSi and CeRuSi

Journal Article · Fri Apr 15 04:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.340775· OSTI ID:5389319

Rebelsky, L; Reilly, K; Horn, S; Borges, H; Thompson, J D; Willis, J O; Aikin, R; Caspari, R; Bredl, C D

We present results of specific heat, electrical resistance, and magnetic susceptibility measurements on the heavy fermion system CePtSi and compare it to CeRuSi. Both compounds show a low-temperature maximum in c/sub p//T, usually associated with the formation of a coherent heavy fermion ground state. An additional feature in c/sub p//T is observed for CePtSi and is attributed to cooperative magnetism, an interpretation confirmed by magnetic measurements. A comparison with other heavy fermion systems, especially stoichiometric and nonstoichiometric CeCu/sub 2/Si/sub 2/, is performed.

• Research Organization: Department of Physics, New York University, New York, New York 10003
• OSTI ID: 5389319
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 63:8; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CERIUM COMPOUNDS
CERIUM SILICIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
PLATINUM COMPOUNDS
PLATINUM SILICIDES
RARE EARTH COMPOUNDS
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM SILICIDES
SILICIDES
SILICON COMPOUNDS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE