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pro vyhledávání: '"Fjærestad, John O."'
The one-dimensional spin-$s$ ${\rm SU}(2)$ ferromagnetic Heisenberg model, as a paradigmatic example for spontaneous symmetry breaking (SSB) with type-B Goldstone modes (GMs), is expected to exhibit an abstract fractal underlying the ground state sub
Externí odkaz:
http://arxiv.org/abs/2407.17925
We use series expansion methods to study ground- and excited-state properties in the helically ordered phase of spin-1/2 frustrated antiferromagnets on an anisotropic triangular lattice. We calculate the ground state energy, ordering wavevector, subl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701014
We use series expansion methods to calculate the dispersion relation of the one-magnon excitations for the spin-1/2 triangular-lattice nearest-neighbor Heisenberg antiferromagnet above a three-sublattice ordered ground state. Several striking feature
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608008
Publikováno v:
Phys. Rev. Lett. 96, 057201 (2006)
We use series expansions to study the excitation spectra of spin-1/2 antiferromagnets on anisotropic triangular lattices. For the isotropic triangular lattice model (TLM) the high-energy spectra show several anomalous features that differ strongly fr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506400
Akademický článek
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Autor:
Zheng W; School of Physics, The University of New South Wales, Sydney, NSW 2052, Australia., Fjaerestad JO, Singh RR, McKenzie RH, Coldea R
Publikováno v:
Physical review letters [Phys Rev Lett] 2006 Feb 10; Vol. 96 (5), pp. 057201. Date of Electronic Publication: 2006 Feb 06.
