Changes in magnetic properties of Ce/sub x/La/sub 1-x/Cu/sub 2/Si/sub 2/ series during the transition from a Kondo impurity to a Kondo lattice

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Sov. Phys. - Solid State (Engl. Transl.); (United States)

OSTI ID:5152806

Aliev, F G; Brandt, N B; Moshchalkov, V V; Lutsiv, R V; Chudinov, S M

Magnetic properties of isostructural substitutional solid solutions Ce/sub x/La/sub 1-x/Cu/sub 2/Si/sub 2/ (0 or approx. =0.8, the value of T/sub SG/ decreases, and near xroughly-equal1 Ce/sub x/La/sub 1-x/Cu/sub 2/Si/sub 2/ compounds become superconducting. These changes in magnetic properties of Ce/sub x/La/sub 1-x/Cu/sub 2/Si/sub 2/ take place during the transition from a Kondo impurity (x< or =1) to a Kondo lattice (xroughly-equal1) when there appears a narrow resonance near the Fermi energy for x..-->..1, which causes a decrease of the effective magnetic moment of Ce ions (and a decrease of T/sub SG/ in the region x> or approx. =0.8) and appearance of superconductivity of heavy fermions in CeCu/sub 2/Si/sub 2/.

• Research Organization: M. V. Lomonosov Moscow State University, Moscow
• OSTI ID: 5152806
• Journal Information: Sov. Phys. - Solid State (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Solid State (Engl. Transl.); (United States) Vol. 25:8; ISSN SPSSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
&amp; Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CERIUM ADDITIONS
CERIUM ALLOYS
CERIUM COMPOUNDS
CHEMICAL COMPOSITION
COPPER COMPOUNDS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ENERGY LEVELS
FERMI LEVEL
KONDO EFFECT
LANTHANUM ADDITIONS
LANTHANUM ALLOYS
LANTHANUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MIXTURES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
RESONANCE
SILICON COMPOUNDS
SOLID SOLUTIONS
SOLUTIONS
SPIN GLASS STATE
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE