NMR and dc-susceptibility studies of NaVGe2O6

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dc.creatorPedrini, B.
dc.creatorGavilano, J. L.
dc.creatorRau, D.
dc.creatorOtt, H. R.
dc.creatorKazakov, S. M.
dc.creatorKarpinski, J.
dc.creatorWessel, S.
dc.date2004-02-18
dc.date2005-10-13
dc.date.accessioned2026-07-07T06:34:50Z
dc.date.available2026-07-07T06:34:50Z
dc.descriptionWe report the results of measurements of the dc magnetic susceptibility chi(T) and of the 23Na nuclear magnetic resonance (NMR) response of NaVGe2O6, a material in which the V ions form a network of interacting one-dimensional spin S=1 chains. The experiments were made at temperatures between 2.5 and 300 K. The chi(T) data suggest that the formation of the expected low-temperature Haldane phase is intercepted by an antiferromagnetic phase transition at 18 K. The transition is also reflected in the 23Na NMR spectra and the corresponding spin-lattice relaxation rate 1/T1(T). In the ordered phase, 1/T1(T) decreases by orders of magnitude with decreasing temperature, indicating the formation of a gap of the order of 12 K in the magnetic excitation spectrum.
dc.description10 pages, 15 figures; v2 with minor revisions of the text
dc.identifierhttps://arxiv.org/abs/cond-mat/0402482
dc.identifierhttp://arxiv.org/abs/cond-mat/0402482
dc.identifierPhysical Review B70, 024421 (2004)
dc.identifierdoi:10.1103/PhysRevB.70.024421
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/99648
dc.subjectOther Condensed Matter
dc.titleNMR and dc-susceptibility studies of NaVGe2O6
dc.typetext

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