Elementary Steps on the 4He Crystal Interface Probed by 3He Atoms

V. Tsepelin; J. P. Saramäki; A. V. Babkin; P. J. Hakonen; J. J. Hyvönen; R. M. Luusalo; A.Ya. Parshin; G. K. Tvalashvili

doi:10.1103/PhysRevLett.83.4804

Elementary Steps on the 4He Crystal Interface Probed by 3He Atoms

V. Tsepelin, J. P. Saramäki, A. V. Babkin^*, P. J. Hakonen, J. J. Hyvönen, R. M. Luusalo, A.Ya. Parshin, G. K. Tvalashvili

^*Tämän työn vastaava kirjoittaja

Teknillisen fysiikan laitos

Russian Academy of Sciences

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

7 Sitaatiot (Scopus)

316 Lataukset (Pure)

Abstrakti

The growth dynamics of c facets, governed by individual Frank-Read type of sources, has been studied at millikelvin temperatures in the presence of small concentrations of ³He atoms in the liquid. We find that in the spiral growth regime, interaction of ³He atoms with moving elementary steps on the surface results in additional friction. Our results are compared with theory, where high-frequency (ω ≥ T/ℏ) zero-point oscillations of the steps are taken into account. There is a good agreement if we assume the amplitude of these oscillations ξ ≈ 5 nm.

Alkuperäiskieli	Englanti
Sivut	4804-4807
Sivumäärä	4
Julkaisu	Physical Review Letters
Vuosikerta	83
Numero	23
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevLett.83.4804
Tila	Julkaistu - 6 jouluk. 1999
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1103/PhysRevLett.83.4804

PhysRevLett.83.4804Final published version, 99,6 KB

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@article{f3945fe9ecd9432fafe7f0a10b1bd7b3,

title = "Elementary Steps on the 4He Crystal Interface Probed by 3He Atoms",

abstract = "The growth dynamics of c facets, governed by individual Frank-Read type of sources, has been studied at millikelvin temperatures in the presence of small concentrations of 3He atoms in the liquid. We find that in the spiral growth regime, interaction of 3He atoms with moving elementary steps on the surface results in additional friction. Our results are compared with theory, where high-frequency (ω ≥ T/ℏ) zero-point oscillations of the steps are taken into account. There is a good agreement if we assume the amplitude of these oscillations ξ ≈ 5 nm.",

author = "V. Tsepelin and Saram{\"a}ki, {J. P.} and Babkin, {A. V.} and Hakonen, {P. J.} and Hyv{\"o}nen, {J. J.} and Luusalo, {R. M.} and A.Ya. Parshin and Tvalashvili, {G. K.}",

year = "1999",

month = dec,

day = "6",

doi = "10.1103/PhysRevLett.83.4804",

language = "English",

volume = "83",

pages = "4804--4807",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "23",

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TY - JOUR

T1 - Elementary Steps on the 4He Crystal Interface Probed by 3He Atoms

AU - Tsepelin, V.

AU - Saramäki, J. P.

AU - Babkin, A. V.

AU - Hakonen, P. J.

AU - Hyvönen, J. J.

AU - Luusalo, R. M.

AU - Parshin, A.Ya.

AU - Tvalashvili, G. K.

PY - 1999/12/6

Y1 - 1999/12/6

N2 - The growth dynamics of c facets, governed by individual Frank-Read type of sources, has been studied at millikelvin temperatures in the presence of small concentrations of 3He atoms in the liquid. We find that in the spiral growth regime, interaction of 3He atoms with moving elementary steps on the surface results in additional friction. Our results are compared with theory, where high-frequency (ω ≥ T/ℏ) zero-point oscillations of the steps are taken into account. There is a good agreement if we assume the amplitude of these oscillations ξ ≈ 5 nm.

AB - The growth dynamics of c facets, governed by individual Frank-Read type of sources, has been studied at millikelvin temperatures in the presence of small concentrations of 3He atoms in the liquid. We find that in the spiral growth regime, interaction of 3He atoms with moving elementary steps on the surface results in additional friction. Our results are compared with theory, where high-frequency (ω ≥ T/ℏ) zero-point oscillations of the steps are taken into account. There is a good agreement if we assume the amplitude of these oscillations ξ ≈ 5 nm.

UR - http://www.scopus.com/inward/record.url?scp=0013217411&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.83.4804

DO - 10.1103/PhysRevLett.83.4804

M3 - Article

AN - SCOPUS:0013217411

SN - 0031-9007

VL - 83

SP - 4804

EP - 4807

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

ER -

Elementary Steps on the 4He Crystal Interface Probed by 3He Atoms

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