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Magnetization of coupled spin clusters in Ladder Geometry

Emily Chattopadhyay·Indrani Bose
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Abstract

In this paper, we construct a class of spin-1/2 antiferromagnetic (AFM) two-chain ladder models consisting of blocks of n-spin tetrahedral clusters alternating with two-spin rungs. For n=4 and 6 and in extended parameter regimes, the exact ground state of the ladder is shown to be a product of the ground states of the rungs and the n-spin blocks, in both zero and finite magnetic fields. In the latter case, magnetization/site (m) versus magenetic field (h) plot exhibits well-defined magnetization plateaus.

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Emily Chattopadhyay, Indrani Bose. 2002-02-11. Magnetization of coupled spin clusters in Ladder Geometry. https://doi.org/10.1103/physrevb.65.134425

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