Effects of oxygen on the upper critical fields of lead and tin molybdenum sulfide Chevrel phases

Journal Article · Wed May 01 04:00:00 EDT 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.6108· OSTI ID:5701232

Foner, S; McNiff, Jr, E J; Hinks, D G

The upper critical fields, H/sub c/2, of SnMo/sub 6/S/sub 8-x/O/sub x/ and PbMo/sub 6/S/sub 8-x/O/sub x/ Chevrel-phase materials with controlled oxygen content were measured with dc and pulsed magnetic fields. The present results and those of many earlier investigations are explained by the presence of oxygen. Observations of increases in T/sub c/ and the variation of H/sub c/2 obtained by additions of Gd or Al are explained by the gettering of oxygen by these additives. The highest T/sub c/ materials, which have the lowest oxygen content, do not have the highest H/sub c/2(0).

• Research Organization: Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 5701232
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 31:9; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CHALCOGENIDES
CRITICAL FIELD
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
LEAD COMPOUNDS
LEAD SULFIDES
MAGNETIC FIELDS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NUMERICAL DATA
OXYGEN ADDITIONS
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TIN COMPOUNDS
TIN SULFIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE