Magnon thermal conductivity of solid He3 in the U2D2 antiferromagnetic phase

Y. P. Feng, P. Schiffer, J. Mihalisin, D. D. Osheroff

Research output: Contribution to journalArticlepeer-review

Abstract

We report the first measurement of magnon thermal conductivity in monodomain single crystals of 3He in the U2D2 antiferromagnetic phase. The magnon mean free path λ was found first to rise rapidly upon cooling below TN and then more slowly at low temperatures, depending upon the sample. The temperature dependence is consistent with magnon umklapp scattering at high T, i.e., λ proportional to T-2 exp(Δ/kBT), with Δ/kB determined to be 5.8(±0.3) mK. The limiting low-temperature values of λ. varied from 0.3 to 3 μm. a Department of Physics, Cornell University, Ithaca, NY 14853.

Original languageEnglish (US)
Pages (from-to)1450-1453
Number of pages4
JournalPhysical review letters
Volume65
Issue number12
DOIs
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Magnon thermal conductivity of solid He3 in the U2D2 antiferromagnetic phase'. Together they form a unique fingerprint.

Cite this