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Choi HC, Gray AJ, Vicente CL, et al. A1 and A2 transitions in superfluid 3He in 98% porosity aerogel. Phys Rev Lett. 2004;93(14):145302doi: 10.1103/PhysRevLett.93.145302.
Choi, H. C., Gray, A. J., Vicente, C. L., Xia, J. S., Gervais, G., Halperin, W. P., Mulders, N., & Lee, Y. (2004). A1 and A2 transitions in superfluid 3He in 98% porosity aerogel. Physical review letters, 93(14), 145302. https://doi.org/10.1103/PhysRevLett.93.145302
Choi, H C, et al. "A1 and A2 transitions in superfluid 3He in 98% porosity aerogel." Physical review letters vol. 93,14 (2004): 145302. doi: https://doi.org/10.1103/PhysRevLett.93.145302
Choi HC, Gray AJ, Vicente CL, Xia JS, Gervais G, Halperin WP, Mulders N, Lee Y. A1 and A2 transitions in superfluid 3He in 98% porosity aerogel. Phys Rev Lett. 2004 Oct 01;93(14):145302. doi: 10.1103/PhysRevLett.93.145302. Epub 2004 Oct 01. PMID: 15524807.
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Phys Rev Lett. 2004 Oct 01;93(14):145302. doi: 10.1103/PhysRevLett.93.145302. Epub 2004 Oct 01.

A1 and A2 transitions in superfluid 3He in 98% porosity aerogel.

Physical review letters

H C Choi, A J Gray, C L Vicente, J S Xia, G Gervais, W P Halperin, N Mulders, Y Lee

Affiliations

  1. Department of Physics, University of Florida, Gainesville, Florida 32611-8440, USA.

PMID: 15524807 DOI: 10.1103/PhysRevLett.93.145302

Abstract

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 (3)He/aerogel.

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