375 citations · 989 across the 18 of their papers we have counts for
18 papers
Order by disorder and phase transitions in a highly frustrated spin model on the triangular lattice
A. Honecker, D. C. Cabra, H. -U. Everts +2
Frustration has proved to give rise to an extremely rich phenomenology in both quantum and classical systems. The leading behavior of the system can often be described by an effect…
Correlations in the Ising antiferromagnet on the anisotropic kagome lattice
Walter Apel, Hans-Ulrich Everts
We study the correlation function of middle spins, i. e. of spins on intermediate sites between two adjacent parallel lattice axes, of the spatially anisotropic Ising antiferromagn…
Heisenberg antiferromagnet with anisotropic exchange on the Kagome lattice: Description of the magnetic properties of volborthite
T. Yavors'kii, W. Apel, H. -U. Everts
We study the properties of the Heisenberg antiferromagnet with spatially anisotropic nearest-neighbour exchange couplings on the kagome net, i.e. with coupling J in one lattice dir…
Finite-temperature ordering in a two-dimensional highly frustrated spin model
A. Honecker, D. C. Cabra, H. -U. Everts +2
We investigate the classical counterpart of an effective Hamiltonian for a strongly trimerized kagome lattice. Although the Hamiltonian only has a discrete symmetry, the classical…
Spatially anisotropic Heisenberg Kagome antiferromagnet
W. Apel, T. Yavors'kii, H. -U. Everts
In the search for spin-1/2 kagome antiferromagnets, the mineral volborthite has recently been the subject of experimental studies [Hiroi et al.,2001]. It has been suggested that th…
Quantum gases in trimerized kagomé lattices
B. Damski, H. Fehrmann, H. -U. Everts +3
We study low temperature properties of atomic gases in trimerized optical kagomé lattices. The laser arrangements that can be used to create these lattices are briefly described. W…