Exictation spectrum and thermodynamic properties of the Ising-Heisenberg linear ferromagnet
Journal Article
·
· Phys. Rev. Lett.; (United States)
New analytic results are presented for the low-T thermodynamics of the Ising-Heisenberg linear ferromagnetic in a magnetic field H/sub 0/. For small H/sub 0/ the thermodyanmic functions show unexpected and interesting structure as a function of H/sub 0/ and the anisotropy ..delta... The thermal and magnetic energy gaps have singularities, not necessarily at the same ..delta..-H/sub 0/ location, as changes occur in the type of excitation dominating the low-T behavior. The results may relate to quantum solitons in the linear ferromagnet.
- Research Organization:
- Theoretical Division, Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5478943
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 44:9; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM OPERATORS
ANISOTROPY
BOUNDARY CONDITIONS
CRYSTAL MODELS
DISPERSION RELATIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERROMAGNETISM
HAMILTONIANS
HEISENBERG MODEL
ISING MODEL
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETISM
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
ONE-DIMENSIONAL CALCULATIONS
PAULI SPIN OPERATORS
QUANTUM OPERATORS
QUASI PARTICLES
SOLITONS
SPECTRA
THERMODYNAMICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM OPERATORS
ANISOTROPY
BOUNDARY CONDITIONS
CRYSTAL MODELS
DISPERSION RELATIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERROMAGNETISM
HAMILTONIANS
HEISENBERG MODEL
ISING MODEL
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETISM
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
ONE-DIMENSIONAL CALCULATIONS
PAULI SPIN OPERATORS
QUANTUM OPERATORS
QUASI PARTICLES
SOLITONS
SPECTRA
THERMODYNAMICS