ANOMALOUS ATTENUATION OF SPIN-ENTROPY WAVES IN SUPERFLUID HE-4-A(1)

Authors
BASTEA M OKUDA Y LABELLA V KOJIMA H
Citation
M. Bastea et al., ANOMALOUS ATTENUATION OF SPIN-ENTROPY WAVES IN SUPERFLUID HE-4-A(1), Physical review letters, 73(8), 1994, pp. 1126-1129
Citations number
10
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
8
Year of publication
1994
Pages
1126 - 1129
Database
ISI
SICI code
0031-9007(1994)73:8<1126:AAOSWI>2.0.ZU;2-N
Abstract
The propagation of spin-entropy waves was observed in superfluid He-3- A1 at a pressure of 22.7 bars and magnetic fields up to 5 T. A large i ncrease in attenuation was observed within the A1 phase near its lower transition temperature to the A2 phase over an unexpectedly large tem perature width. The observed effects are suggested as evidence for the presence of a minority (down-moment pair) condensate population predi cted by Monien and Tewordt.