Anisotropic thermal conductivity of hydrogen deuteride crystal for polarized proton target development

M. Utsuro*, T. Kuwai, T. Ohta, H. Kohri, M. Fujiwara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The thermal conductivity of a hydrogen deuteride (HD) single crystal is measured at 3-7 K for two mutually perpendicular directions of heat flow in the crystal. The HD sample is prepared by direct crystallization from ultra high-purity HD gas. A typical anisotropy with a ratio of nearly tenfold is obtained for the thermal conductivity in the measured temperature region. Approximate calculations of the anisotropic thermal conductivity in the HD crystal are performed using an analytical formulation of the two-dimensional anisotropic heat conduction, while taking into account cross-plane coupling of phonon Umklapp scattering. The approximate calculations are found to be in reasonable agreement with the experimental results.

Original languageEnglish
Pages (from-to)36-40
Number of pages5
JournalPhysica B: Condensed Matter
Volume418
DOIs
StatePublished - 2013/06/01

Keywords

  • Anisotropy
  • Hydrogen deuteride
  • Single crystal
  • Solid hydrogen
  • Thermal conductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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