Studies of a 2-Chain Spin Ladder with Frustrating Second Neighbor Interactions
arXiv:cond-mat/9711006 · doi:10.1103/PhysRevB.57.11439
Abstract
The Heisenberg model on a 2-chain spin-1/2 ladder with frustrating second neighbor interactions is studied by using series expansions about the Ising and dimer limits, numerical diagonalization, and by Abelian bosonization analysis. The phase diagram is determined, and pair correlations and the complete dispersion relations for the triplet spin-wave excitations are also computed.
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