Quantum coherence in small antiferromagnets

S. E. Barnes, R. Ballou, B. Barbara, J. Strelen

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

An antiferromagnetic particle with an excess spin j has 2 degrees of freedom. The one associated with j is ferromagnetic, while the antiferromagnetic behavior involves Néel vector n It is shown that the spin-parity effect described by Loss et al. has to do with the ferromagnetic degree of freedom and does not imply the localization of n for small enough particles for half-integer spin. It is also shown that the tunnel splitting associated with n is insensitive to applied fields.

Original languageEnglish (US)
Pages (from-to)289-292
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number2
DOIs
StatePublished - Jul 14 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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