Observation of a doublet splitting of the squashing mode in superfluid ³He-B

Authors

Z. Zhao, Northwestern University
Shireen Adenwalla, University of Nebraska-LincolnFollow
P. N. Brusov, Northwestern University
J. B. Ketterson, Northwestern UniversityFollow
B. K. Sarma, University of Wisconsin - Milwaukee

Date of this Version

1989

Citation

AIP Conference Proceedings 194, 109 (1989); doi: 10.1063/1.38816

Abstract

The squashing mode in ³He - B has been studied using a single ended cw acoustic impedance technique.[1] The sound cell employed two 12.8 MHz x-cut quartz transducers separated by a pair of gold plated tungsten wires resulting in a round trip path length of 381 µm. The spacing was calibrated by measuring the change of the velocity with pressure and was consistent with the measured wire diameter.