185 citations · 630 across the 16 of their papers we have counts for
16 papers
Ground state selection by magnon interactions in the fcc antiferromagnet
R. Schick, O. Götze, T. Ziman +3
We study the nearest-neighbor Heisenberg antiferromagnet on a face-centered cubic lattice with arbitrary spin S. The model exhibits degenerate classical ground states including two…
The Interplay Between Lattice Topology, Frustration, and Spin Quantum Number in Quantum Antiferromagnets on Archimedean Lattices
D. J. J. Farnell, O. Götze, J. Schulenburg +3
The interplay between lattice topology, frustration, and spin quantum number, , is explored for the Heisenberg antiferromagnet (HAFM) on the eleven two-dimensional Archimedean l…
The Spin-Half {\it XXZ} Antiferromagnet on the Square Lattice Revisited: A High-Order Coupled Cluster Treatment
Raymond F. Bishop, Peggy H. Y. Li, Ronald Zinke +4
We use the coupled cluster method (CCM) to study the ground-state properties and lowest-lying triplet excited state of the spin-half {\it XXZ} antiferromagnet on the square lattice…
Ground-state properties of the triangular-lattice Heisenberg antiferromagnet with arbitrary spin quantum number
O. Götze, J. Richter, R. Zinke +1
We apply the coupled cluster method to high orders of approximation and exact diagonalizations to study the ground-state properties of the triangular-lattice spin- Heisenberg an…
Frustration and Dzyaloshinsky-Moriya anisotropy in the kagome francisites CuBi(SeOOX
Ioannis Rousochatzakis, Johannes Richter, Ronald Zinke +1
We investigate the antiferromagnetic canting instability of the spin-1/2 kagome ferromagnet, as realized in the layered cuprates CuBi(SeOOX (X=Br, Cl, and I). While…
The spin-1/2 square-lattice J_1-J_2 model: The spin-gap issue
J. Richter, R. Zinke, D. J. J. Farnell
We use the coupled cluster method to high orders of approximation in order to calculate the ground-state energy, the ground-state magnetic order parameter, and the spin gap of the…