Quartz microbalance study of superfluid helium thin films adsorbed on a hydrogen pre-plated gold surface

Shalva Ben-Ezra; William I. Glaberson

doi:10.1016/S0921-4526(02)01979-8

Quartz microbalance study of superfluid helium thin films adsorbed on a hydrogen pre-plated gold surface

Shalva Ben-Ezra^*, William I. Glaberson

^*Corresponding author for this work

Racah Institute of Physics

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

1 Scopus citations

Abstract

We have developed a highly sensitive torsional oscillator technique for probing the effect of the substrate character on the Kosterlitz-Thouless [1] transition in thin helium films. We have measured the vortex diffusivity in thin superfluid helium films adsorbed on a hydrogen pre-plated gold substrate. Helium adsorbed on such a surface exhibits the Kosterlitz-Thouless transition at pressure substantially higher than that for helium adsorbed on a gold substrate. We study finite amplitude and frequency effects for substrate velocities up to 32 cm/s and in the frequency range from 3.3 to 36 MHz for single quartz crystal microbalance.

Original language	English
Pages (from-to)	250-251
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
DOIs	https://doi.org/10.1016/S0921-4526(02)01979-8
State	Published - May 2003
Event	Proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 20 Aug 2002 → 27 Aug 2002

Keywords

Helium films
Hydrogen substrate
Kosterlitz-Thouless transition
Torsional oscillator

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10.1016/S0921-4526(02)01979-8

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title = "Quartz microbalance study of superfluid helium thin films adsorbed on a hydrogen pre-plated gold surface",

abstract = "We have developed a highly sensitive torsional oscillator technique for probing the effect of the substrate character on the Kosterlitz-Thouless [1] transition in thin helium films. We have measured the vortex diffusivity in thin superfluid helium films adsorbed on a hydrogen pre-plated gold substrate. Helium adsorbed on such a surface exhibits the Kosterlitz-Thouless transition at pressure substantially higher than that for helium adsorbed on a gold substrate. We study finite amplitude and frequency effects for substrate velocities up to 32 cm/s and in the frequency range from 3.3 to 36 MHz for single quartz crystal microbalance.",

keywords = "Helium films, Hydrogen substrate, Kosterlitz-Thouless transition, Torsional oscillator",

author = "Shalva Ben-Ezra and Glaberson, {William I.}",

year = "2003",

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doi = "10.1016/S0921-4526(02)01979-8",

language = "אנגלית",

volume = "329-333",

pages = "250--251",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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note = "Proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

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T1 - Quartz microbalance study of superfluid helium thin films adsorbed on a hydrogen pre-plated gold surface

AU - Ben-Ezra, Shalva

AU - Glaberson, William I.

PY - 2003/5

Y1 - 2003/5

N2 - We have developed a highly sensitive torsional oscillator technique for probing the effect of the substrate character on the Kosterlitz-Thouless [1] transition in thin helium films. We have measured the vortex diffusivity in thin superfluid helium films adsorbed on a hydrogen pre-plated gold substrate. Helium adsorbed on such a surface exhibits the Kosterlitz-Thouless transition at pressure substantially higher than that for helium adsorbed on a gold substrate. We study finite amplitude and frequency effects for substrate velocities up to 32 cm/s and in the frequency range from 3.3 to 36 MHz for single quartz crystal microbalance.

AB - We have developed a highly sensitive torsional oscillator technique for probing the effect of the substrate character on the Kosterlitz-Thouless [1] transition in thin helium films. We have measured the vortex diffusivity in thin superfluid helium films adsorbed on a hydrogen pre-plated gold substrate. Helium adsorbed on such a surface exhibits the Kosterlitz-Thouless transition at pressure substantially higher than that for helium adsorbed on a gold substrate. We study finite amplitude and frequency effects for substrate velocities up to 32 cm/s and in the frequency range from 3.3 to 36 MHz for single quartz crystal microbalance.

KW - Helium films

KW - Hydrogen substrate

KW - Kosterlitz-Thouless transition

KW - Torsional oscillator

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AN - SCOPUS:17144468565

SN - 0921-4526

VL - 329-333

SP - 250

EP - 251

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 -

Quartz microbalance study of superfluid helium thin films adsorbed on a hydrogen pre-plated gold surface

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