3He dimers in two-dimensional 3He–4He mixture films

M. Saarela, Janne Paaso, E. Krotscheck, K. Schörkhuber

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1 Citation (Scopus)

Abstract

Ground state properties of the two-dimensional 3He–4He mixture are studied at zero temperature. We find that at low concentrations 3He atoms dimerize and form bosonic mixture with 4He. The binding energy of the dimer ranges from 10−3 K near the saturation density to 10−6 K at the solidification density. The radius of such a weakly bound dimer is tens of Ångströms. A stable atomic mixture is found at concentration larger than ≈5% varying with density. At high 3He concentrations the mixture phase separates and critical concentrations are obtained by calculating the second derivative of the enthalpy.

Original languageEnglish
Pages (from-to)331-332
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPart 1
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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Dimers
dimers
Binding energy
Ground state
solidification
Solidification
low concentrations
Enthalpy
binding energy
enthalpy
Derivatives
saturation
Atoms
radii
ground state
atoms
Temperature
temperature

Cite this

Saarela, M. ; Paaso, Janne ; Krotscheck, E. ; Schörkhuber, K. / 3He dimers in two-dimensional 3He–4He mixture films. In: Physica B: Condensed Matter. 2000 ; Vol. 284-288, No. Part 1. pp. 331-332.
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abstract = "Ground state properties of the two-dimensional 3He–4He mixture are studied at zero temperature. We find that at low concentrations 3He atoms dimerize and form bosonic mixture with 4He. The binding energy of the dimer ranges from 10−3 K near the saturation density to 10−6 K at the solidification density. The radius of such a weakly bound dimer is tens of {\AA}ngstr{\"o}ms. A stable atomic mixture is found at concentration larger than ≈5{\%} varying with density. At high 3He concentrations the mixture phase separates and critical concentrations are obtained by calculating the second derivative of the enthalpy.",
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Saarela, M, Paaso, J, Krotscheck, E & Schörkhuber, K 2000, '3He dimers in two-dimensional 3He–4He mixture films', Physica B: Condensed Matter, vol. 284-288, no. Part 1, pp. 331-332. https://doi.org/10.1016/S0921-4526(99)02682-4

3He dimers in two-dimensional 3He–4He mixture films. / Saarela, M.; Paaso, Janne; Krotscheck, E.; Schörkhuber, K.

In: Physica B: Condensed Matter, Vol. 284-288, No. Part 1, 2000, p. 331-332.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - 3He dimers in two-dimensional 3He–4He mixture films

AU - Saarela, M.

AU - Paaso, Janne

AU - Krotscheck, E.

AU - Schörkhuber, K.

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N2 - Ground state properties of the two-dimensional 3He–4He mixture are studied at zero temperature. We find that at low concentrations 3He atoms dimerize and form bosonic mixture with 4He. The binding energy of the dimer ranges from 10−3 K near the saturation density to 10−6 K at the solidification density. The radius of such a weakly bound dimer is tens of Ångströms. A stable atomic mixture is found at concentration larger than ≈5% varying with density. At high 3He concentrations the mixture phase separates and critical concentrations are obtained by calculating the second derivative of the enthalpy.

AB - Ground state properties of the two-dimensional 3He–4He mixture are studied at zero temperature. We find that at low concentrations 3He atoms dimerize and form bosonic mixture with 4He. The binding energy of the dimer ranges from 10−3 K near the saturation density to 10−6 K at the solidification density. The radius of such a weakly bound dimer is tens of Ångströms. A stable atomic mixture is found at concentration larger than ≈5% varying with density. At high 3He concentrations the mixture phase separates and critical concentrations are obtained by calculating the second derivative of the enthalpy.

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DO - 10.1016/S0921-4526(99)02682-4

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EP - 332

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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