Measurements of the Pair-Breaking Edge in Superfluid ³He-B

Authors

Shireen Adenwalla, University of Nebraska-LincolnFollow
Z. Xhao, Northwestern University
J. B. Ketterson, Northwestern UniversityFollow
Bimal K. Sarma, University of Wisconsin - Milwaukee

Document Type

Article

Date of this Version

1989

Citation

Physical Review Letters, Volume 63, Number 17, October 1989

Comments

Copyright 1989 The American Physical Society

Abstract

We have made the first systematic study of the pair-breaking edge in superfluid ³He-B over a wide range of pressures and frequencies. This direct measurement of the gap enables us to experimentally verify the predictions made for strong-coupling corrections to the gap. In addition, it indirectly lends support to the temperature scale of Greywall.