Loss of memory in 'dirty' superfluid 3He

G. Gervais; K. Yawata; N. Mulders; W. P. Halperin

doi:10.1016/S0921-4526(02)02073-2

Loss of memory in 'dirty' superfluid ³He

G. Gervais^*, K. Yawata, N. Mulders, W. P. Halperin

^*Corresponding author for this work

IIN - International Institute for Nanotechnology

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The transition between the A and B superfluid phases of ³He is first order, and the A-phase has been known to supercool far into the region where the B-phase is thermodynamically stable. The extent of the supercooling strongly depends on whether the cooling originates from above, or from below the normal-to-superfluid transition. For the latter, the supercooling has a 'memory' of the prior warming history. We have studied the nucleation of the B-phase for pure ³He and for a superfluid constrained to a dilute silica aerogel of 98% porosity. Interestingly, we have found that the nucleation of the aerogel B-phase shows, unlike the pure case, no memory, even though large supercooling of the aerogel A-phase is observed.

Original language	English (US)
Pages (from-to)	329-330
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
DOIs	https://doi.org/10.1016/S0921-4526(02)02073-2
State	Published - May 2003
Event	Proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002

Funding

We thank D.D. Osheroff and S. Balibar for stimulating discussions. This work was supported by the NSF, Grant No. DMR-0072350.

Keywords

Aerogel
Nucleation
Superfluid He

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(02)02073-2

Cite this

@article{3d4f7003018a4a55bcd86939381fea5c,

title = "Loss of memory in 'dirty' superfluid 3He",

abstract = "The transition between the A and B superfluid phases of 3He is first order, and the A-phase has been known to supercool far into the region where the B-phase is thermodynamically stable. The extent of the supercooling strongly depends on whether the cooling originates from above, or from below the normal-to-superfluid transition. For the latter, the supercooling has a 'memory' of the prior warming history. We have studied the nucleation of the B-phase for pure 3He and for a superfluid constrained to a dilute silica aerogel of 98% porosity. Interestingly, we have found that the nucleation of the aerogel B-phase shows, unlike the pure case, no memory, even though large supercooling of the aerogel A-phase is observed.",

keywords = "Aerogel, Nucleation, Superfluid He",

author = "G. Gervais and K. Yawata and N. Mulders and Halperin, {W. P.}",

note = "Funding Information: We thank D.D. Osheroff and S. Balibar for stimulating discussions. This work was supported by the NSF, Grant No. DMR-0072350. ; Proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

month = may,

doi = "10.1016/S0921-4526(02)02073-2",

language = "English (US)",

volume = "329-333",

pages = "329--330",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Loss of memory in 'dirty' superfluid 3He

AU - Gervais, G.

AU - Yawata, K.

AU - Mulders, N.

AU - Halperin, W. P.

N1 - Funding Information: We thank D.D. Osheroff and S. Balibar for stimulating discussions. This work was supported by the NSF, Grant No. DMR-0072350.

PY - 2003/5

Y1 - 2003/5

N2 - The transition between the A and B superfluid phases of 3He is first order, and the A-phase has been known to supercool far into the region where the B-phase is thermodynamically stable. The extent of the supercooling strongly depends on whether the cooling originates from above, or from below the normal-to-superfluid transition. For the latter, the supercooling has a 'memory' of the prior warming history. We have studied the nucleation of the B-phase for pure 3He and for a superfluid constrained to a dilute silica aerogel of 98% porosity. Interestingly, we have found that the nucleation of the aerogel B-phase shows, unlike the pure case, no memory, even though large supercooling of the aerogel A-phase is observed.

AB - The transition between the A and B superfluid phases of 3He is first order, and the A-phase has been known to supercool far into the region where the B-phase is thermodynamically stable. The extent of the supercooling strongly depends on whether the cooling originates from above, or from below the normal-to-superfluid transition. For the latter, the supercooling has a 'memory' of the prior warming history. We have studied the nucleation of the B-phase for pure 3He and for a superfluid constrained to a dilute silica aerogel of 98% porosity. Interestingly, we have found that the nucleation of the aerogel B-phase shows, unlike the pure case, no memory, even though large supercooling of the aerogel A-phase is observed.

KW - Aerogel

KW - Nucleation

KW - Superfluid He

UR - http://www.scopus.com/inward/record.url?scp=17144475069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144475069&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(02)02073-2

DO - 10.1016/S0921-4526(02)02073-2

M3 - Conference article

AN - SCOPUS:17144475069

SN - 0921-4526

VL - 329-333

SP - 329

EP - 330

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Proceedings of the 23rd international conference on low temper

Y2 - 20 August 2002 through 27 August 2002

ER -