Accession Number : AD0664913

Title :   INVESTIGATION OF ELECTRON AND NUCLEAR SPIN-PHONON INTERACTIONS IN METALS AND SEMICONDUCTORS.

Descriptive Note : Final rept.,

Corporate Author : WASHINGTON UNIV ST LOUIS MO DEPT OF PHYSICS

Personal Author(s) : Bolef,Dan I.

Report Date : 19 DEC 1967

Pagination or Media Count : 5

Abstract : Two experiments, both involving the interaction of high frequency phonons with nuclear spins in solids, were initiated under this grant: (i) Research into acoustic interactions with nuclear spins in antiferromagnets, and (ii) Research into acoustic interactions with nuclear spins in metals. The particular relevance of these two studies to the advance of basic knowledge of solids stems from the fact that the sensitive high frequency acoustic techniques utilized in these experiments are capable of investigating directly internal dynamic interactions not easily studied by other techniques. Thus in (i) we have been able to discover and investigate dynamic magnetic interactions (closely related to spin-lattice relaxation effects) in an interesting antiferromagnet, and in (ii) we have been able to begin a thorough study of spin-phonon interactions in bulk metal single crystals. (Author)

Descriptors :   (*ANTIFERROMAGNETISM, NUCLEAR SPINS), (*METAL CRYSTALS, NUCLEAR SPINS), (*NUCLEAR SPINS, INTERACTIONS), (*PHONONS, INTERACTIONS), CRYSTAL DEFECTS, SINGLE CRYSTALS, TANTALUM, POTASSIUM COMPOUNDS, MANGANESE COMPOUNDS, FLUORIDES, SOLIDS, MECHANICAL WAVES

Subject Categories : Crystallography
      Electricity and Magnetism
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE