The magnetic ordering in the mixed valence compound beta-Na0.33V2O5

A. N. Vasil'ev, V. I. Marchenko, A. I. Smirnov +3

The low-temperature electron spin resonance (ESR) spectra and the static magnetization data obtained for the stoichiometric single crystals of $\beta$-Na${}_{0.33}$V${}_2$O${}_5$ indicate th…