Accession Number : ADA017613
Title : Magnetic Properties of Superconducting Layered Compounds.
Descriptive Note : Interim rept.,
Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS
Personal Author(s) : Prober,Daniel Ethan
Report Date : SEP 1975
Pagination or Media Count : 193
Abstract : The results of an investigation of the fluctuation-induced diamagnetism and upper critical fields of superconducting layered compounds are presented. Compounds studied include TaS2 and TaS(1.6)Se(0.4) intercalated with collidine, pyridine, or aniline, having layer separations of 3, 6, and 12 A respectively, and the unintercalated compounds TaS(1.6)Se(0.4) and NbSe2. Susceptibility above T sub c for TaS2(pyridine)1/2 and NbSe2 was measured in fields up to 300 G with a superconducting quantum magnetometer. Extensive measurements of (H sub C2) as a function of field orientation and temperature were made with an ac susceptibility technique, in fields to 120 kG. The critical field anisotropy however, is found to depend only weakly on the separation between metallic layers.
Descriptors : *SUPERCONDUCTORS, *MAGNETIC PROPERTIES, CLATHRATE COMPOUNDS, SELENIDES, SULFIDES, TANTALUM COMPOUNDS, NIOBIUM COMPOUNDS, PYRIDINES, ANILINES, ORIENTATION(DIRECTION), MAGNETOMETERS
Subject Categories : Physical Chemistry
Electricity and Magnetism
Solid State Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE