Kyhl, Robert L.

Strandberg, Malcom W. P.

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II. MICROWAVE SPECTROSCOPYProf. M. W. P. Strandberg A. Fukumoto T. E. McEnallyProf. R. L. Kyhl D. Hubbard R. M. PreerDr. J. M. Andrews R. Huibonhoa S. R. ReznekS. N. Bromberg J. G. Ingersoll W. J. SchwabeG. E. Capodilista J. D. Kierstead A. W. SnyderM. K. MaulRESEARCH OBJECTIVESThis group has a broad general interest in the study of metals by means of UHF andmicrowave frequency experiments, in particular by the use of microwave phonons.Acoustic methods are now sufficiently well developed at microwave frequencies andbelow to generate useful information about the electronic structure of metals and super-conductors. Examples from our current experiments include work on geometricresonances in gallium, and measurement of the temperature dependence of the super-conducting energy gap in indium.Efforts to improve the acoustic techniques and to understand the behavior of themicrowave phonon transducers, both coherent and incoherent, will continue. Develop-ment of the equipment for quantitative surface impedance studies at low temperature isessentially complete. There are some preliminary experiments on the use of laserbeams for optical spectroscopy of metallic reflection.Our traditional interest in electron paramagnetic resonance has not ended. Thecross-relaxation studies continue to raise new questions. Cooperation in the use of ourEMR facilities is exemplified by studies of the atomic hydrogen concentration in elec-trolysis with Professor H. H. Uhlig of the Department of Metallurgy, M. I. T.R. L. Kyhl, M. W. P. StrandbergQPR No. 76

Microwave Spectroscopy

http://dspace.mit.edu/bitstream/1721.1/54042/1/RLE_QPR_076_II.pdf

Microwave Spectroscopy

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