Phys. Rev. Lett. 93, 145302 (2004) [4 pages]A1 and A2 Transitions in Superfluid 3He in 98% Porosity AerogelReceived 25 May 2004; published 1 October 2004 Superfluid 3He in high porosity aerogel is the system in which the effects of static impurities on a p-wave superfluid can be investigated in a systematic manner. We performed shear acoustic impedance measurements on this system (98% porosity aerogel) in the presence of magnetic fields up to 15 T at the sample pressures of 28.4 and 33.5 bars. We observed the splitting of the superfluid transition into two transitions in high fields in both bulk and liquid in aerogel. The field dependence of the splitting in aerogel resembles that of the bulk superfluid 3He caused by the presence and growth of the A1 phase. Our results provide the first evidence of the A1 phase in superfluid 3He/aerogel. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.145302
DOI:
10.1103/PhysRevLett.93.145302
PACS:
67.57.Pq, 67.80.Mg
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.