Argon Nanoclusters with Fivefold Symmetry in Supersonic Gas Jets and Superfluid Helium

O. G. Danylchenko; R. E. Boltnev; V. V. Khmelenko; Valery Kiryukhin; O. P. Konotop; D. M. Lee; N. V. Krainyukova

doi:10.1007/s10909-016-1720-8

Argon Nanoclusters with Fivefold Symmetry in Supersonic Gas Jets and Superfluid Helium

O. G. Danylchenko, R. E. Boltnev, V. V. Khmelenko, Valery Kiryukhin, O. P. Konotop, D. M. Lee, N. V. Krainyukova

New High Energy Theory Center

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

1 Scopus citations

Abstract

In this study argon nanoclusters (800 to ∼ 6500 atoms) formed in supersonic gas jets are compared to the nanoclusters stabilized in superfluid helium. High-energy electron and X-ray diffraction methods are utilized. Both techniques allow investigation of isolated clusters. It is shown that the theoretical prediction of the so-called multiply twinned particles with fivefold symmetry, such as icosahedra (ico) and decahedra (dec) is valid in the investigated cluster size interval. Around the point of the expected ico-to-dec size-dependent transformation at a cluster size of ∼ 2000 atoms, hexagonal ico and the statistical distribution of structures with a tendency for dec to replace ico are observed. Kinetic reasons, as well as temperature-related effects, could be responsible for the latter observations.

Original language	English (US)
Pages (from-to)	156-165
Number of pages	10
Journal	Journal of Low Temperature Physics
Volume	187
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-016-1720-8
State	Published - Apr 1 2017

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

Keywords

Argon nanoclusters
Impurity-helium solids
Multiply twinned particles
Size-dependent transformation
Supersonic gas jet

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10.1007/s10909-016-1720-8

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@article{95b8d925513844e3933b40b1e1e7dbb9,

title = "Argon Nanoclusters with Fivefold Symmetry in Supersonic Gas Jets and Superfluid Helium",

abstract = "In this study argon nanoclusters (800 to ∼ 6500 atoms) formed in supersonic gas jets are compared to the nanoclusters stabilized in superfluid helium. High-energy electron and X-ray diffraction methods are utilized. Both techniques allow investigation of isolated clusters. It is shown that the theoretical prediction of the so-called multiply twinned particles with fivefold symmetry, such as icosahedra (ico) and decahedra (dec) is valid in the investigated cluster size interval. Around the point of the expected ico-to-dec size-dependent transformation at a cluster size of ∼ 2000 atoms, hexagonal ico and the statistical distribution of structures with a tendency for dec to replace ico are observed. Kinetic reasons, as well as temperature-related effects, could be responsible for the latter observations.",

keywords = "Argon nanoclusters, Impurity-helium solids, Multiply twinned particles, Size-dependent transformation, Supersonic gas jet",

author = "Danylchenko, {O. G.} and Boltnev, {R. E.} and Khmelenko, {V. V.} and Valery Kiryukhin and Konotop, {O. P.} and Lee, {D. M.} and Krainyukova, {N. V.}",

note = "Funding Information: D.M. Lee and V.V. Khmelenko acknowledge funding from NSF Grant No DMR 1209255. The authors thank Paul Leiderer and Peter Toennies for valuable discussions.",

year = "2017",

month = apr,

day = "1",

doi = "10.1007/s10909-016-1720-8",

language = "English (US)",

volume = "187",

pages = "156--165",

journal = "Journal of Low Temperature Physics",

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publisher = "Springer New York",

number = "1-2",

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T1 - Argon Nanoclusters with Fivefold Symmetry in Supersonic Gas Jets and Superfluid Helium

AU - Danylchenko, O. G.

AU - Boltnev, R. E.

AU - Khmelenko, V. V.

AU - Kiryukhin, Valery

AU - Konotop, O. P.

AU - Lee, D. M.

AU - Krainyukova, N. V.

N1 - Funding Information: D.M. Lee and V.V. Khmelenko acknowledge funding from NSF Grant No DMR 1209255. The authors thank Paul Leiderer and Peter Toennies for valuable discussions.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - In this study argon nanoclusters (800 to ∼ 6500 atoms) formed in supersonic gas jets are compared to the nanoclusters stabilized in superfluid helium. High-energy electron and X-ray diffraction methods are utilized. Both techniques allow investigation of isolated clusters. It is shown that the theoretical prediction of the so-called multiply twinned particles with fivefold symmetry, such as icosahedra (ico) and decahedra (dec) is valid in the investigated cluster size interval. Around the point of the expected ico-to-dec size-dependent transformation at a cluster size of ∼ 2000 atoms, hexagonal ico and the statistical distribution of structures with a tendency for dec to replace ico are observed. Kinetic reasons, as well as temperature-related effects, could be responsible for the latter observations.

AB - In this study argon nanoclusters (800 to ∼ 6500 atoms) formed in supersonic gas jets are compared to the nanoclusters stabilized in superfluid helium. High-energy electron and X-ray diffraction methods are utilized. Both techniques allow investigation of isolated clusters. It is shown that the theoretical prediction of the so-called multiply twinned particles with fivefold symmetry, such as icosahedra (ico) and decahedra (dec) is valid in the investigated cluster size interval. Around the point of the expected ico-to-dec size-dependent transformation at a cluster size of ∼ 2000 atoms, hexagonal ico and the statistical distribution of structures with a tendency for dec to replace ico are observed. Kinetic reasons, as well as temperature-related effects, could be responsible for the latter observations.

KW - Argon nanoclusters

KW - Impurity-helium solids

KW - Multiply twinned particles

KW - Size-dependent transformation

KW - Supersonic gas jet

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