MAGNETO-ACOUSTIC ABSORPTION IN SOLIDS.
Abstract
The elastic constants of 3 alkali metals were measured as a function of temperature. The ultrasonic pulse-echo technique was used to measure potassium in the temperature range 4.2-195K and sodium in the range 78-300K. Results were in good agreement with other published data. Single crystals of rubidium were grown by a modified Bridgeman technique in an argon atmosphere; elastic constants were not obtained, however, due to an inability to orient crystals by x-ray techniques. Magneto-acoustic measurements were made on crystals of potassium at 10, 30, and 50 mc/sec to obtain dimensions of Fermi surface; change in attenuation with magnetic field was also measured. Ultrasonic attenuation measurements were also conducted on magnesium single crystals at 10-290 mc/sec. A list of the publications and these emanating from this grant are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1965
- Accession Number
- AD0621130
Entities
People
- Joseph Trivisonno
Organizations
- John Carroll University