Spin Ladder with Anisotropic Ferromagnetic Legs in a Transverse Magnetic Field

Abstract

We study the ground state phase diagram of a two-leg spin ladder with anisotropic ferromagnetic leg couplings under the influence of a symmetry breaking transverse magnetic field by the exact diagonalization technique. In the case of antiferromagnetic coupling between legs we identified two phase transitions in the plane of magnetic field vs interchain coupling strength. The first one corresponds to the transition from the gapped rung-singlet phase to the gapped stripe-ferromagnetic phase. The second one represents the transition from the gapped stripe-ferromagnetic phase into the fully polarized ferromagnetic phase.

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Cited by in corpus (5)

• Magnetic phase diagram of the dimerized spin $S=1/2$ ladder
• The quantum compass chain in a transverse magnetic field
• Concurrence and entanglement entropy in a dimerized spin-1/2 two-leg ladder
• Mixed-spin Heisenberg ladders in a magnetic field
• Anomalous behavior of the spin gap of a spin-1/2 two-leg antiferromagnetic ladder with Ising-like rung interactions