OBSERVATION OF NONLINEAR PROPAGATION OF SPIN-ENTROPY WAVE IN SUPERFLUID HE-3

Authors
BASTEA M KOJIMA H DEVEGVAR PGN
Citation
M. Bastea et al., OBSERVATION OF NONLINEAR PROPAGATION OF SPIN-ENTROPY WAVE IN SUPERFLUID HE-3, Physical review letters, 76(15), 1996, pp. 2766-2769
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
15
Year of publication
1996
Pages
2766 - 2769
Database
ISI
SICI code
0031-9007(1996)76:15<2766:OONPOS>2.0.ZU;2-U
Abstract
The propagation of a spin-entropy wave in superfluid He-3-A(1) was obs erved in a cylindrical chamber with the magnetic field applied perpend icular to the chamber axis. A strong nonlinear response was observed a s a function of drive amplitude. When the drive is relatively small, t he resonant response is hysteretic and is dependent on the direction o f frequency sweep through the resonance. When the drive is increased t o a sufficiently large value, the response reverts to nearly linear de pendence.