Superfluid 3He A is a liquid ferromagnet

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Abstract

THE superfluid A phase of liquid 3He (see for example refs 1, 2) is often said to display orbital ferromagnetism3. This term generally seems to be meant metaphorically and to imply that this phase possesses a finite total orbital angular momentum in equilibrium3. I point out here that superfluid 3He A is in fact quite literally ferromagnetic, with a spontaneous magnetic moment which, although extremely small on the scale of ordinary ferromagnets (∼ 10-11 Bohr magnetons per atom) is probably measurable and may indeed have some interesting experimental implications.

Original languageEnglish (US)
Pages (from-to)585-586
Number of pages2
JournalNature
Volume270
Issue number5638
DOIs
StatePublished - Dec 1 1977
Externally publishedYes

ASJC Scopus subject areas

  • General

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