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Ultrasonic investigations of vortex textures in 3HeA

✍ Scribed by J.M. Kyynarainen; J.P. Pekola; K. Torizuka; A.J. Manninen

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
219 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

Zero sound attenuation has been used to probe vortex textures in rotating 3He-A. The highly nonlinear rotation speed dependencies of the measured sound amplitudes can be explained partly as being due to sonic velocity gradients in the vortex cores. Calculations of sound propagation in the geometrical limit have been made to extract information on the types of vortex cores and their sizes using our experimental data.

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