Journal of Low Temperature Physics

, Volume 40, Issue 3–4, pp 401–413 | Cite as

Magnetic properties of vacancies on the triangular plane 3He crystal

  • S. V. Iordansky
Article

The ground state of the plane quantum Fermi crystal with a triangular lattice is considered. Using symmetry properties, the ground state wave function is constructed and a variational estimate of the ground state energy is obtained. The ground state corresponds to an unsaturated ferromagnet with spin equal to one-third of the maximum spin. Some other nonalternate lattices are also considered. The spectrum of elementary excitations for a finite concentration of the vacancies is studied. The existence of low-lying spin excitations with a small gap is predicted. Ordinary gapless spin waves also exist.

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Copyright information

© Plenum Publishing Corporation 1980

Authors and Affiliations

  • S. V. Iordansky
    • 1
    • 2
  1. 1.NORDITACopenhagenDenmark
  2. 2.Landau Institute for Theoretical PhysicsMoscowUSSR

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