Anomalous excitation spectra of frustrated quantum antiferromagnets.

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 from linear spin-wave theory (LSWT). Even in the Né...

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Príomhchruthaitheoirí: Zheng, W, Fjaerestad, J, Singh, R, McKenzie, R, Coldea, R
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: 2006