Radiation induced nucleation of the AB transition in superfluid 3He.

P. Schiffer; M. T. O'Keefe; M. D. Hildreth; Hiroshi Fukuyama; D. D. Osheroff

doi:10.1016/0921-4526(94)90733-1

Radiation induced nucleation of the AB transition in superfluid ³He.

P. Schiffer, M. T. O'Keefe, M. D. Hildreth, Hiroshi Fukuyama, D. D. Osheroff

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The AB transition in superfluid ³He was studied in regions confined by microscopically smooth surfaces where the transition exhibited dramatic supercooling to lower temperatures than had previously been recorded. Placing a source of ionizing radiation near the cryostat reduced the lifetime of the metastable A-phase by more than 3 orders of magnitude, supporting Leggett's baked Alaska model. Additionally, the measured temperature and magnetic field dependences of the lifetime were consistent with the predictions of this model. Monte Carlo simulations of the interaction of radiation with our sample also support the model and allowed us to estimate the efficiency of radiation in nucleating the transition.

Original language	English (US)
Pages (from-to)	807-808
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	194-196
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4526(94)90733-1
State	Published - Feb 2 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1016/0921-4526(94)90733-1

Cite this

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title = "Radiation induced nucleation of the AB transition in superfluid 3He.",

abstract = "The AB transition in superfluid 3He was studied in regions confined by microscopically smooth surfaces where the transition exhibited dramatic supercooling to lower temperatures than had previously been recorded. Placing a source of ionizing radiation near the cryostat reduced the lifetime of the metastable A-phase by more than 3 orders of magnitude, supporting Leggett's baked Alaska model. Additionally, the measured temperature and magnetic field dependences of the lifetime were consistent with the predictions of this model. Monte Carlo simulations of the interaction of radiation with our sample also support the model and allowed us to estimate the efficiency of radiation in nucleating the transition.",

author = "P. Schiffer and O'Keefe, {M. T.} and Hildreth, {M. D.} and Hiroshi Fukuyama and Osheroff, {D. D.}",

note = "Funding Information: The authors thank A. J. Leggett for useful discussions. Work was supported by NSF grant DMR-9110423, and H. F. was supported in part by the Nishina Memorial Foundation.",

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T1 - Radiation induced nucleation of the AB transition in superfluid 3He.

AU - Schiffer, P.

AU - O'Keefe, M. T.

AU - Hildreth, M. D.

AU - Fukuyama, Hiroshi

AU - Osheroff, D. D.

N1 - Funding Information: The authors thank A. J. Leggett for useful discussions. Work was supported by NSF grant DMR-9110423, and H. F. was supported in part by the Nishina Memorial Foundation.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - The AB transition in superfluid 3He was studied in regions confined by microscopically smooth surfaces where the transition exhibited dramatic supercooling to lower temperatures than had previously been recorded. Placing a source of ionizing radiation near the cryostat reduced the lifetime of the metastable A-phase by more than 3 orders of magnitude, supporting Leggett's baked Alaska model. Additionally, the measured temperature and magnetic field dependences of the lifetime were consistent with the predictions of this model. Monte Carlo simulations of the interaction of radiation with our sample also support the model and allowed us to estimate the efficiency of radiation in nucleating the transition.

AB - The AB transition in superfluid 3He was studied in regions confined by microscopically smooth surfaces where the transition exhibited dramatic supercooling to lower temperatures than had previously been recorded. Placing a source of ionizing radiation near the cryostat reduced the lifetime of the metastable A-phase by more than 3 orders of magnitude, supporting Leggett's baked Alaska model. Additionally, the measured temperature and magnetic field dependences of the lifetime were consistent with the predictions of this model. Monte Carlo simulations of the interaction of radiation with our sample also support the model and allowed us to estimate the efficiency of radiation in nucleating the transition.

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Radiation induced nucleation of the AB transition in superfluid ³He.

Abstract

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