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most citedPhase diagram of the two-dimensional t-t' Falicov-Kimball model

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cond-mat.stat-mech2004

Some properties of frustrated spin systems: extensions and applications of Lieb-Schupp approach

Jacek Wojtkiewicz

Lieb and Schupp have obtained, using certain version of ``spin-reflection positivity'' method, a number of ground-state properties for frustrated Heisenberg models. One group of th…