Bishop, R. F., Li, P. H. Y., Farnell, Damian J. J. ![]() |
Abstract
The coupled cluster method is applied to a spin-half model at zero temperature (T=0), which interpolates between Heisenberg antiferromagnets (HAFs) on a kagome and a square lattice. With respect to an underlying triangular lattice the strengths of the Heisenberg bonds joining the nearest-neighbor (NN) kagome sites are J1≥0 along two of the equivalent directions and J2≥0 along the third. Sites connected by J2 bonds are themselves connected to the missing NN non-kagome sites of the triangular lattice by bonds of strength J1′≥0. When J1′=J1 and J2=0 the model reduces to the square-lattice HAF. The magnetic ordering of the system is investigated and its T=0 phase diagram discussed. Results for the kagome HAF limit are among the best available.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Dentistry |
Publisher: | American Physical Society |
ISSN: | 1098-0121 |
Last Modified: | 04 Jan 2024 08:38 |
URI: | https://orca.cardiff.ac.uk/id/eprint/59344 |
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