Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 79 (2004) | ISSUE 8 | PAGE 470
Metastability and superfluid fraction of the A-like and B phases of 3He in aerogel in zero magnetic field
PACS: 64.60.My, 67.57.-z
Abstract
We report the low frequency sound measurements of the metastable A-like (A^\ast) phase of superfluid 3He confined within a 98% open aerogel matrix in zero magnetic field. The second sound-like (slow) mode provides an accurate determination of the superfluid fraction of (and the transition between) the A^\ast and B phases. The A^\ast and B phases exhibit stable coexistence in the presence of disorder, the ratio of their superfluid fractions, \rho_{s}^{A^\ast}/\rho_s^B, is much smaller than that of the bulk A and B phases, and argues that the A* and bulk A phases are distinct.