75 citations · 167 across the 7 of their papers we have counts for
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Large- expansions for the low-energy parameters of the honeycomb-lattice Heisenberg antiferromagnet with spin quantum number
R. F. Bishop, P. H. Y. Li
The coupled cluster method (CCM) is employed to very high orders of approximation to study the ground-state (GS) properties of the spin- Heisenberg antiferromagnet (with isotrop…
A frustrated quantum spin-${\boldmath s}$ model on the Union Jack lattice with spins ${\boldmath s>1/2}$
R. F. Bishop, P. H. Y. Li
The zero-temperature phase diagrams of a two-dimensional frustrated quantum antiferromagnetic system, namely the Union Jack model, are studied using the coupled cluster method (CCM…
Magnetic order in a spin-1/2 interpolating kagome-square Heisenberg antiferromagnet
R. F. Bishop, P. H. Y. Li, D. J. J. Farnell +1
The coupled cluster method is applied to a spin-half model at zero temperature (), which interpolates between Heisenberg antiferromagnets (HAF's) on a kagome and a square latt…
Magnetic order on a frustrated spin-1/2 Heisenberg antiferromagnet on the Union Jack lattice
R. F. Bishop, P. H. Y. Li, D. J. J. Farnell +1
We use the coupled cluster method (CCM) to study the zero-temperature phase diagram of a 2D frustrated spin-half antiferromagnet, the so-called Union Jack model. It is defined on a…
The DSUB Approximation Scheme for the Coupled Cluster Method and Applications to Quantum Magnets
R. F. Bishop, P. H. Y. Li, J. Schulenburg
A new approximate scheme, DSUB, is described for the coupled cluster method. We then apply it to two well-studied (spin-1/2 Heisenberg antiferromagnet) spin-lattice models, name…
Magnetic order in a spin-half interpolating square-triangle Heisenberg antiferromagnet
R. F. Bishop, P. H. Y. Li, D. J. J. Farnell +1
Using the coupled cluster method we study the zero-temperature phase diagram of a spin-half Heisenberg antiferromagnet (HAF), the so-called -- model, defined on an a…
The ground-state magnetic ordering of the spin-1/2 frustrated J1-J2 XXZ model on the square lattice
R. Darradi, J. Richter, J. Schulenburg +2
Using the coupled-cluster method for infinite lattices and the exact diagonalization method for finite lattices, we study the influence of an exchange anisotropy Delta on the groun…