Excitations in a four-leg antiferromagnetic Heisenberg spin tube

V. O. Garlea, A. Zheludev, L. P. Regnault, J. H. Chung, Y. Qiu, M. Boehm, K. Habicht, M. Meissner

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


Inelastic neutron scattering is used to investigate magnetic excitations in the quasi-one-dimensional quantum spin-liquid system Cu2Cl4•D8C4SO2. Contrary to previously conjectured models that relied on bond-alternating nearest-neighbor interactions in the spin chains, the dominant interactions are actually next-nearest-neighbor in-chain antiferromagnetic couplings. The appropriate Heisenberg Hamiltonian is equivalent to that of a S=1/2 4-leg spin-tube with almost perfect one dimensionality and no bond alternation. A partial geometric frustration of rung interactions induces a small incommensurability of short-range spin correlations.

Original languageEnglish
Article number037206
JournalPhysical review letters
Issue number3
Publication statusPublished - 2008 Jan 25
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Excitations in a four-leg antiferromagnetic Heisenberg spin tube'. Together they form a unique fingerprint.

Cite this