T. Miwa et R. Weston, THE MONODROMY MATRICES OF THE XXZ MODEL IN THE INFINITE VOLUME LIMIT, Journal of physics. A, mathematical and general, 30(21), 1997, pp. 7509-7523
We consider the XXZ model in the infinite volume limit with spin -1/2
quantum space and higher spin auxiliary space. Using perturbation theo
ry arguments, we relate the half infinite transfer matrices of this cl
ass of model to certain U-q(<(sl(2))over cap>) intertwiners introduced
by Nakayashiki. We construct the monodromy matrices, and show that th
e one with spin-1 auxiliary space gives rise to the L-operator.