Absence of ferromagnetic long range order in random isotropic dipolar magnets and in similar systems

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83 Scopus citations

Abstract

It is shown that random off-diagonal exchange interaction coefficients destroy ferromagnetic long range order in isotropic systems with less than four spatial dimensions. A special case is that of random isotropic systems with dipole-dipole interactions. The proof breaks down when (cubic or hexagonal) symmetry breaking terms are introduced. However, in some cases such terms turn the transition into the ferromagnetic phase first order, with a possible spin glass phase above it.

Original languageEnglish
Pages (from-to)667-670
Number of pages4
JournalSolid State Communications
Volume28
Issue number8
DOIs
StatePublished - 1 Jan 1978
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry

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