Goetze, Oliver, Richter, Johannes, Zinke, Ronald and Farnell, Damian  ORCID: https://orcid.org/0000-0003-0662-1927
2016.
Ground-state properties of the triangular-lattice Heisenberg antiferromagnet with arbitrary spin quantum number s.
Journal of Magnetism and Magnetic Materials
397
, pp. 333-341.
10.1016/j.jmmm.2015.08.113
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Abstract
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-s Heisenberg antiferromagnet. We calculate the fundamental ground-state quantities, namely, the energy e0, the sublattice magnetization Msub, the in-plane spin stiffness ρs and the in-plane magnetic susceptibility χ for spin quantum numbers s=1/2,1,…,smax, where smax=9/2 for e0 and Msub, smax=4 for ρs and smax=3 for χ . We use the data for s≥3/2 to estimate the leading quantum corrections to the classical values of e0, Msub, ρs, and χ. In addition, we study the magnetization process, the width of the 1/3 plateau as well as the sublattice magnetizations in the plateau state as a function of the spin quantum number s.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Dentistry |
| Subjects: | R Medicine > RK Dentistry |
| Uncontrolled Keywords: | Triangular lattice; Heisenberg antiferromagnet; Ground-state properties; Magnetization curves |
| Publisher: | Elsevier |
| ISSN: | 0304-8853 |
| Date of First Compliant Deposit: | 30 March 2016 |
| Date of Acceptance: | 24 August 2015 |
| Last Modified: | 02 Sep 2025 22:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/76004 |
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