A generalized spin ladder in a magnetic field

Abstract

We study the phase diagram of coupled spin-1/2 chains with bilinear and (chiral) three-spin exchange interactions in a magnetic field. The model is soluble on a one-parametric line in the space of coupling constants connecting the limiting cases of a single and two decoupled Heisenberg chains with nearest neighbour exchange only. We give a complete classification of the low-energy properties of the integrable system and introduce a numerical method which allows to study the possible phases of spin ladder systems away from the soluble line in a magnetic field.

Latex2e, 13 pp., 5 figures

Cited by in corpus (13)

• Magnetic phase diagram of the spin-1/2 antiferromagnetic zigzag ladder
• Antiferromagnetic Zigzag Spin Chain in Magnetic Fields at Finite Temperatures
• Exact description of the magnetoelectric effect in the spin-1/2 XXZ-chain with Dzyaloshinskii-Moriya interaction
• Split Fermi seas in one-dimensional Bose fluids
• The Canted Spiral: An Exact Ground State of XXZ Zigzag Ladders
• Correlations of zero-entropy critical states in the XXZ model: integrability and Luttinger theory far from the ground state
• Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions
• Magnetocaloric effect in the spin-$1/2$ chain with competing interactions
• Thermodynamics of quantum spin chains with competing interactions
• Next-nearest-neighbor spin-spin and chiral-spin correlation functions in generalized XXX chain
• Fractional S^z excitation and its bound state for the S=1/2 antiferromagnetic zigzag spin chain in a magnetic field
• Spin dynamics and dark particle in a weak-coupled quantum Ising ladder with ${\mathcal{D}}_8^{(1)}$ spectrum
• Exact thermodynamics and phase diagram of integrable t-J model with chiral interaction