SPIN FREEZING AND ORDERING IN CAV4O9, CAV3O7 AND CAV2O5

Authors
LUKE GM FUDAMOTO Y GINGRAS MJP KOJIMA KM LARKIN M MERRIN J NACHUMI B UEMURA YJ
Citation
Gm. Luke et al., SPIN FREEZING AND ORDERING IN CAV4O9, CAV3O7 AND CAV2O5, Journal of magnetism and magnetic materials, 177, 1998, pp. 754-755
Citations number
8
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
177
Year of publication
1998
Part
1
Pages
754 - 755
Database
ISI
SICI code
0304-8853(1998)177:<754:SFAOIC>2.0.ZU;2-Z
Abstract
We have performed muon spin relaxation measurements of CaV4O9, CaV3O7 and CaV2O5. The sublattice magnetization in the antiferromagnetic stat e of CaV3O7 agrees well with spin wave theory. In CaV4O9 and CaV2O5 we observe spin freezing below 15 and 50 K, respectively, which indicate s that a substantial fraction of the vanadium magnetic moment is not i n a spin-singlet stale at low temperatures in either material. (C) 199 8 Elsevier Science B.V. All rights reserved.