Alternating-Spin Ladders
arXiv:cond-mat/9710082 · doi:10.1103/PhysRevB.57.398
Abstract
We investigate a two-leg spin ladder system composed of alternating-spin chains with two-different kind of spins. The fixed point properties are discussed by using spin-wave analysis and non-linear sigma model techniques. The model contains various massive phases, reflecting the interplay between the bond-alternation and the spin-alternation.
6 pages, revtex, to appear in PRB