Dispersion relations and speeds of sound in special sectors for the integrable chain with alternating spins

Abstract

Based on our previous analysis \cite{doerfel3} of the anisotropic integrable chain consisting of spins $s=1/2$ and $s=1$ we compare the dispersion relations for the sectors with infinite Fermi zones. Further we calculate the speeds of sound for regions close to sector borders, where the Fermi radii either vanish or diverge, and compare the results.

11 pages, LaTeX2e, uses iopart.cls,graphicx.sty and psfrag.sty, 2 figures

References in corpus (5)

• Properties of the chiral spin liquid state in generalized spin ladders
• Ground State Structure and Low Temperature Behaviour of an Integrable Chain with Alternating Spins
• Ground state and low excitations of an integrable chain with alternating spins
• Finite-size corrections of an integrable chain with alternating spins
• Complete phase diagram for the integrable chain with alternating spins in the sectors with competing interactions

Cited by in corpus (1)

• Existence of the magnetization plateau in a class of exactly solvable Ising-Heisenberg chains