Evidence for Anomalous Phonon Excitations in Solid He3

William C. Thomlinson
Phys. Rev. Lett. 23, 1330 – Published 8 December 1969
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Abstract

Thermal-conductivity measurements in solid He3 in the bcc phase and at temperatures below about 0.5°K show an unexpected temperature dependence which is less than T3. Specific-heat measurements, in this temperature range, have been reported as showing a closely similar effect, and this provides evidence for a thermal excitation which must take part in the heat transport. In addition, Poiseuille flow of phonons has been directly observed.

  • Received 21 October 1969

DOI:https://doi.org/10.1103/PhysRevLett.23.1330

©1969 American Physical Society

Authors & Affiliations

William C. Thomlinson

  • Department of Physics, Yale University, New Haven, Connecticut 06520

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Issue

Vol. 23, Iss. 23 — 8 December 1969

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