E.P.R. studies of the phase transitions in β-phase vanadium bronzes NaxV2O5

A. Friederich , D. Kaplan , N. Sol , R.H. Wallis

The β phase vanadium bronzes NaxV2O 5 have been studied by E.P.R. Two transitions in magnetic behaviour are identified, one at T = 150 K, the other at T = 20 K. They are interpreted as three-dimensional ordering transitions in these quasi-one-dimensional compounds. The transitions are made possible by the long range chemical order existing in NaxV2 O5 at x = 1/3.

Mots clés: long range order; magnetic susceptibility; order disorder transformations; paramagnetic resonance of iron group ions and impurities; sodium compounds; vanadium compounds; phase transitions; Na sub x V sub 2 O sub 5; magnetic behaviour; long range chemical order; beta phase Na sub x V sub 2 O sub 5; EPR; 150K; 20K; three dimensional ordering transitions; quasi one dimensional compounds

Domaines: Articles anciens

A. Friederich, D. Kaplan, N. Sol, R.H. Wallis. E.P.R. studies of the phase transitions in β-phase vanadium bronzes NaxV2O5. Journal de Physique Lettres, 1978, 39 (19), pp.343-346. ⟨10.1051/jphyslet:019780039019034300⟩. ⟨jpa-00231513⟩