Electron spin resonance of the low-dimensional spin-system Sr 2V3O9

The electron spin resonance (ESR) of the quasi-one dimensional vanadium oxide compound Sr2V3O9 has been studied in the temperature range 4.2-500K. The angular variation and the temperature dependence of the ESR linewidth has been measured in two mutually perpendicular planes of a single crystal. A Dzyaloshinsky-Moriya (DM) interaction with a nonstaggered space distribution of DM vectors is claimed to be responsible for the magnetic properties of this chain-like system. © 2004 Elsevier B.V. All rights reserved