Effects of magnetic atoms on the properties of ternary superconductors

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6429763

Dunlap, B D; Shenoy, G K

Until recently it has been commonly accepted that small impurities of magnetic atoms were severely detrimental to superconductivity, and that superconductivity and long-range magnetic ordering could not occur in the same materials. In known binary and pseudo-binary compounds, this is still the case. However, many recent experiments on ternary superconductors have shown that the effects of magnetism are considerably more complex. In some cases, the addition of magnetic atoms has been found to enhance superconducting properties by increasing the superconducting critical field, without significantly lowering the transition temperature. In many cases, compounds will show both superconducting and long range magnetic ordering transitions. The destruction of superconductivity by ferromagnetic ordering and the coexistence of superconductivity with antiferromagnetic ordering is now well established. Hyperfine interaction measurements have played a significant role in the investigations of these materials, including measurement of the magnitude of the exchange interaction between rare-earth spin and conduction electron spin, elucidation of the mechanism for critical field enhancement, specification of crystalline field ground states, and studies of the nature of magnetic ordering.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6429763
• Report Number(s): CONF-800766-4; ON: DE81023535
• 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
BORON ALLOYS
CERIUM ALLOYS
CRITICAL FIELD
CRYSTAL FIELD
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ERBIUM ALLOYS
EUROPIUM ALLOYS
EXPERIMENTAL DATA
FERROMAGNETIC MATERIALS
GADOLINIUM ALLOYS
HYPERFINE STRUCTURE
INFORMATION
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
MAGNETIC MATERIALS
MATERIALS
METALS
MOLYBDENUM ALLOYS
NUMERICAL DATA
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
RARE EARTH ALLOYS
RARE EARTHS
RHODIUM ALLOYS
RUTHENIUM ALLOYS
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES
TIN ALLOYS
TRANSITION TEMPERATURE