98 citations · 1k across the 27 of their papers we have counts for
27 papers
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…
Non-Coplanar Model States in Quantum Magnetism Applications of the High-Order Coupled Cluster Method
D. J. J. Farnell, R. F. Bishop, J. Richter
Coplanar model states for applications of the coupled cluster method (CCM) to problems in quantum magnetism are those in which all spins lie in a plane, whereas three-dimensional (…
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…
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…
High-Order Coupled Cluster Method Calculations using Three-Dimensional Model States: An Illustration for the Triangular-Lattice Antiferromagnet in an External Field
Damian J. J. Farnell, Andrew I. Croudace
The coupled cluster method (CCM) has previously been applied to study the ground- and excited-state properties of many different types of frustrated and unfrustrated quantum spin s…
The magnetization process of the spin-one triangular-lattice Heisenberg antiferromagnet
J. Richter, O. Götze, R. Zinke +2
We apply the coupled cluster method and exact diagonalzation to study the uniform susceptibility and the ground-state magnetization curve of the triangular-lattice spin-1 Heisenber…