Accession Number : AD0714689

Title :   Studies of Solids at Low Temperatures.

Descriptive Note : Final scientific rept.,

Corporate Author : FLORIDA STATE UNIV TALLAHASSEE DEPT OF PHYSICS

Personal Author(s) : Moulton,W. G.

Report Date : 08 OCT 1970

Pagination or Media Count : 24

Abstract : One of the primary objectives of this research has been to investigate the magnetic properties of materials which are likely to exhibit unusual magnetic transitions which may prove to be useful for microwave or switching devices. Experimental techniques used in this research included nuclear magnetic resonance, magnetic susceptibility measurements, optical spectroscopy, and electron spin resonance. A second goal was to develop relationships between magnetic properties and chemical bonding so that eventually magnetic properties could be predicted from the structure of a compound. Another objective of this research was to investigate the possibility of superconductivity in the fluoro-tungsten bronzes. Forty-two of these compounds were synthesized and all were found to have superconducting transition temperatures between one and one half degrees and five degreees Kelvin. Relationships between the critical fields and the transition temperature and the composition have been established. (Author)

Descriptors :   (*MAGNETIC MATERIALS, MAGNETIC PROPERTIES), (*SUPERCONDUCTORS, FEASIBILITY STUDIES), NUCLEAR MAGNETIC RESONANCE, ELECTRON PARAMAGNETIC RESONANCE, SINGLE CRYSTALS, CRYSTAL STRUCTURE, TRANSITION TEMPERATURE, MICROWAVE EQUIPMENT, MAGNETIC PROPERTIES, CHEMICAL BONDS, ANTIFERROMAGNETISM, BRONZE, CRYOGENICS

Subject Categories : Electricity and Magnetism
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE