Energetics, Surface Tension, and Prewetting Jump of Superfluid 4He Films Adsorbed on Planar Substrates

Author： Szybisz L.  

Publisher： Springer Publishing Company

ISSN： 0022-2291

Source： Journal of Low Temperature Physics, Vol.116, Iss.3-4, 1999-08, pp. : 215-230

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

The energetics of superfluid films of 4He adsorbed on planar substrates is studied. For this purpose, the energy per particle of the systems e is expressed as a polynomial expansion in powers of the inverse of coverage. The surface energy σA and the chemical potential μ, defined according to basic equations of thermodynamics, are written in terms of the proposed expansion. From the expression derived for the third-sound velocity c3 it is possible to estimate the prewetting jump. This formalism is applied for analyzing films adsorbed on alkali metal and H2 surfaces. For all the examined substrates the determined energy per particle in the limit of films with infinite width, e∞, is in agreement with the value for bulk liquid 4He. The surface tensions and prewetting jumps obtained in the present work are compared with results of previous studies.

Related content

Superfluid Density of 4He Films Adsorbed in Porous MCM-41 Ceramic

By Chu Han-Ching   Williams Gary A.  

Journal of Low Temperature Physics, Vol. 138, Iss. 1-2, 2005-01 ,pp. : 343-348 (6)

Springer Publishing Company

Access to resources Recommend Favorite

Superfluid Phase Transition of 3He-4He Mixture Films Adsorbed on Alumina Powder

By Cho H.   Williams G.A.  

Journal of Low Temperature Physics, Vol. 110, Iss. 1-2, 1998-01 ,pp. : 533-538 (6)

Springer Publishing Company

Access to resources Recommend Favorite

A First Order Normal to Superfluid Transition: Prewetting in the 4He-Rich Film below Liquid 3He

By He J.   Culman T.G.   Hjort H.H.   Edwards D.O.  

Journal of Low Temperature Physics, Vol. 122, Iss. 3-4, 2001-02 ,pp. : 129-141 (13)

Springer Publishing Company

Access to resources Recommend Favorite

Imaging the edge of a 4He prewetting film on a cesium metal surface

By Müller X.   Kinoshita T.   Dupont-Roc J.  

Journal of Low Temperature Physics, Vol. 113, Iss. 5-6, 1998-12 ,pp. : 823-828 (6)

Springer Publishing Company

Access to resources Recommend Favorite

Superfluid State of 4He Films Adsorbed on 27 Å Pores in HMM-2: Proceedings of the Symposium on Quantum Fluids and Solids, QFS2003

By Yamada Tomoya   Toda Ryo   Matsushita Yuki   Matsushita Taku   Wada Nobuo  

Journal of Low Temperature Physics, Vol. 134, Iss. 1-2, 2004-01 ,pp. : 601-606 (6)

Springer Publishing Company

Access to resources Recommend Favorite