Superconducting and normal state properties of dilute alloys of LaSn/sub 3/ containing Nd impurities

Journal Article · Tue Jan 01 04:00:00 EST 1980 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00115272· OSTI ID:5623988

DeLong, L E; Tovar, M; Woolf, L D; Maple, M B; Johnston, D C; Keller, J

The results of an investigation of the superconducting and normal state physical properties of (LaNd)Sn/sub 3/ alloys are reported. Superconducting state data are presented describing the depression of the superconducting transition temperature T/sub c/ with Nd impurity concentration, the reduction of the reduced jump in heat capacity ..delta..C/..delta..C/sub 0/ with decreasing reduced superconducting transition temperature T/sub c//T/sub c0/, and the pressure dependence of T/sub c/. Normal state data for the temperature dependences of the magnetic susceptibility and heat capacity demonstrate the importance of crystalline electric field effects in the physical behavior of (LaNd)Sn/sub 3/ alloys and indicate that Nd interimpurity magnetic interactions and possibly a small amount of Nd-Sn antisite disorder are manifested in the experimental results. Theories based on an isotropic exchange depairing model are unable to give a safisfactory account of all the experimental data, suggesting that the physical properties of (LaNd)Sn/sub 3/ alloys may be modified by processes involving the orbital exchange scattering of host conduction electrons by the Nd impurities.

• Research Organization: Department of Physics and Institute for Pure and Applied Physical Sciences, University of California: San Diego, La Jolla, California
• OSTI ID: 5623988
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 38:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
DILUTE ALLOYS
EXCHANGE INTERACTIONS
INTERACTIONS
INTERMETALLIC COMPOUNDS
LANTHANUM ALLOYS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NEODYMIUM ADDITIONS
NEODYMIUM ALLOYS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
QUANTITY RATIO
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
TIN ALLOYS
TIN BASE ALLOYS
TRANSITION TEMPERATURE