24 citations · 65 across the 8 of their papers we have counts for
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cond-mat.stat-mech2006
Ground state properties of two spin models with exactly known ground states on the square lattice
A. Sindermann, U. Löw, J. Zittartz
We introduce a new two-dimensional model with diagonal four spin exchange and an exactly knownground-state. Using variational ansaetze and exact diagonalisation we calculate upper…
cond-mat.stat-mech2006★ 4 cited
Structural and magnetic instabilities of layered magnetic systems
Carsten Aits, Ute Löw, Andreas Klümper +1
We present a study of the magnetic order and the structural stability of two-dimensional quantum spin systems in the presence of spin-lattice coupling. For a square lattice it is s…