Bethe ansatz for two-magnon bound states in anisotropic magnetic chains of arbitrary spin

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.342· OSTI ID:5974444

Papanicolaou, N; Psaltakis, G C

The two-magnon spectra in anisotropic magnetic chains of arbitrary spin are derived by an elementary method which is an extension of Bethe's original ansatz for spin-(1/2) systems. Applications are presented for quantum spin chains with uniaxial or Ising Anisotropy as well as chains with quartic exchange interactions. The nature of certain collective modes emerging in a 1/n expansion is also clarified.

• Research Organization: Department of Physics, University of Crete and Research Center of Crete, P.O. Box 1527, Heraklion, Crete GR-711 10, Greece
• OSTI ID: 5974444
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 35:1
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
MAGNETIC MATERIALS
BOUND STATE
MAGNONS
ANISOTROPY
COLLECTIVE EXCITATIONS
EXCHANGE INTERACTIONS
HAMILTONIANS
ISING MODEL
SERIES EXPANSION
SPIN WAVES
CRYSTAL MODELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
INTERACTIONS
MATERIALS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
QUANTUM OPERATORS
QUASI PARTICLES
656002* - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)