ONE-DIMENSIONAL SPIN FLUCTUATIONS IN A TRANSITION-METAL OXIDE

Authors
DITUSA JF CHEONG SW BROHOLM C AEPPLI G RUPP LW BATLOGG B
Citation
Jf. Ditusa et al., ONE-DIMENSIONAL SPIN FLUCTUATIONS IN A TRANSITION-METAL OXIDE, Physica. B, Condensed matter, 194, 1994, pp. 181-182
Citations number
5
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
181 - 182
Database
ISI
SICI code
0921-4526(1994)194:<181:OSFIAT>2.0.ZU;2-#
Abstract
We use inelastic neutron scattering from polycrystalline Y2BaNiO5 and Y2BaNi0.96Zn0.04O5 specimens to demonstrate that the spin fluctuations in this compound are one-dimensional. In addition they are gapped, in accord with the S=1 nature of the Ni2+ and the Haldane conjecture. Th e gap remains well defined and may even grow slightly in the Zn-dilute d compound.