Possible observation of the substrate state in 3He-4He mixture films

W. A. Draisma; M. E.W. Eggenkamp; P. W.H. Pinkse; R. Jochemsen; G. Frossati

doi:10.1016/0921-4526(94)90756-0

Possible observation of the substrate state in ³He-⁴He mixture films

W. A. Draisma^*, M. E.W. Eggenkamp, P. W.H. Pinkse, R. Jochemsen, G. Frossati

^*Corresponding author for this work

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Abstract

We report on measurements of third sound in ³He-⁴He mixture films. The third sound velocity is measured as a function of temperature for ⁴He thicknesses between 3.6 and 5.8 atomic layers (a.l.) and ³He coverages up to 1.25 a.l. An anomaly in the third sound velocity is found around 200 mK for films with a ⁴He thickness of less than 5 a.l. and ³He coverages around 0.5 a.l. Comparison of the results is made with the model of Guyer and Miller and the calculations of Pavloff and Treiner [1, 2].

Original language	English
Pages (from-to)	853-854
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)90756-0
Publication status	Published - 2 Feb 1994
Externally published	Yes

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title = "Possible observation of the substrate state in 3He-4He mixture films",

abstract = "We report on measurements of third sound in 3He-4He mixture films. The third sound velocity is measured as a function of temperature for 4He thicknesses between 3.6 and 5.8 atomic layers (a.l.) and 3He coverages up to 1.25 a.l. An anomaly in the third sound velocity is found around 200 mK for films with a 4He thickness of less than 5 a.l. and 3He coverages around 0.5 a.l. Comparison of the results is made with the model of Guyer and Miller and the calculations of Pavloff and Treiner [1, 2].",

author = "Draisma, {W. A.} and Eggenkamp, {M. E.W.} and Pinkse, {P. W.H.} and R. Jochemsen and G. Frossati",

year = "1994",

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AU - Draisma, W. A.

AU - Eggenkamp, M. E.W.

AU - Pinkse, P. W.H.

AU - Jochemsen, R.

AU - Frossati, G.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - We report on measurements of third sound in 3He-4He mixture films. The third sound velocity is measured as a function of temperature for 4He thicknesses between 3.6 and 5.8 atomic layers (a.l.) and 3He coverages up to 1.25 a.l. An anomaly in the third sound velocity is found around 200 mK for films with a 4He thickness of less than 5 a.l. and 3He coverages around 0.5 a.l. Comparison of the results is made with the model of Guyer and Miller and the calculations of Pavloff and Treiner [1, 2].

AB - We report on measurements of third sound in 3He-4He mixture films. The third sound velocity is measured as a function of temperature for 4He thicknesses between 3.6 and 5.8 atomic layers (a.l.) and 3He coverages up to 1.25 a.l. An anomaly in the third sound velocity is found around 200 mK for films with a 4He thickness of less than 5 a.l. and 3He coverages around 0.5 a.l. Comparison of the results is made with the model of Guyer and Miller and the calculations of Pavloff and Treiner [1, 2].

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VL - 194-196

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EP - 854

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 1

ER -

Possible observation of the substrate state in ³He-⁴He mixture films

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