Zero-sound studies in superfluid 3He |
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Authors: | D. N. Paulson R. L. Kleinberg J. C. Wheatley |
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Affiliation: | (1) Department of Physics, University of California, San Diego, La Jolla, California |
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Abstract: | The propagation of 5-, 15-, and 25-MHz sound in superfluid 3He has been studied in zero magnetic field over a wide pressure range. Measurements of the structure and location of the attenuation peaks, velocity changes, and the low-temperature attenuation are described. The degree of strong coupling in the B phase is discussed. Observations of superheating and supercooling near the polycritical point have been extended and comparison is made with theory.Work supported by the U.S. Energy Research and Development Administration under Contract No. E(04-3)-34, P.A. 143. |
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