Mixed Heisenberg Chains. I. The Ground State Problem
classification
❄️ cond-mat.str-el
cond-mat.stat-mech
keywords
chainsalternatingheisenbergcompetingcompetitionconsiderformationground
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We consider a mechanism for competing interactions in alternating Heisenberg spin chains due to the formation of local spin-singlet pairs. The competition of spin-1 and spin-0 states reveals hidden Ising symmetry of such alternating chains.
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