Scaling of thermal conductivity of helium confined in pores

Kwangsik Nho, E. Manousakis

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We have studied the thermal conductivity of confined superfluids on a barlike geometry. We use the planar magnet lattice model on a lattice H×H×L with L≫H. We have applied open boundary conditions on the bar sides (the confined directions of length H) and periodic along the long direction. We have adopted a hybrid Monte Carlo algorithm to efficiently deal with the critical slowing down and in order to solve the dynamical equations of motion we use a discretization technique which introduces errors only O[(δt)6] in the time step δt. Our results demonstrate the consistency of scaling using known values of the critical exponents and we obtained the scaling function of the thermal resistivity. We find that our results for the thermal resistivity scaling function are in very good agreement with the available experimental results for pores using the temperature scale and thermal resistivity scale as free fitting parameters.

Original languageEnglish (US)
Article number144513
Pages (from-to)1445131-1445135
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number14
StatePublished - Oct 1 2001
Externally publishedYes

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Helium
Thermal conductivity
thermal conductivity
helium
porosity
scaling
electrical resistivity
temperature scales
Temperature scales
equations of motion
magnets
exponents
boundary conditions
Equations of motion
Magnets
Boundary conditions
geometry
Geometry
Direction compound

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Scaling of thermal conductivity of helium confined in pores. / Nho, Kwangsik; Manousakis, E.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 14, 144513, 01.10.2001, p. 1445131-1445135.

Research output: Contribution to journalArticle

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