Quantum coherence in small antiferromagnets

Stewart Barnes, R. Ballou, B. Barbara, J. Strelen

Research output: Contribution to journalArticle

13 Citations (Scopus)

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
StatePublished - 1997

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degrees of freedom
integers
tunnels
parity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Barnes, S., Ballou, R., Barbara, B., & Strelen, J. (1997). Quantum coherence in small antiferromagnets. Physical Review Letters, 79(2), 289-292.

Quantum coherence in small antiferromagnets. / Barnes, Stewart; Ballou, R.; Barbara, B.; Strelen, J.

In: Physical Review Letters, Vol. 79, No. 2, 1997, p. 289-292.

Research output: Contribution to journalArticle

Barnes, S, Ballou, R, Barbara, B & Strelen, J 1997, 'Quantum coherence in small antiferromagnets', Physical Review Letters, vol. 79, no. 2, pp. 289-292.
Barnes S, Ballou R, Barbara B, Strelen J. Quantum coherence in small antiferromagnets. Physical Review Letters. 1997;79(2):289-292.
Barnes, Stewart ; Ballou, R. ; Barbara, B. ; Strelen, J. / Quantum coherence in small antiferromagnets. In: Physical Review Letters. 1997 ; Vol. 79, No. 2. pp. 289-292.
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