MAGNETIZATION AND THE PHASE-DIAGRAM OF CUGEO3 DOPED WITH 2-PERCENT ZN

Authors
SAINTPAUL M VOIRON J PAULSEN C MONCEAU P DHALENNE G REVCOLEVSCHI A
Citation
M. Saintpaul et al., MAGNETIZATION AND THE PHASE-DIAGRAM OF CUGEO3 DOPED WITH 2-PERCENT ZN, Journal of physics. Condensed matter (Print), 10(45), 1998, pp. 10215-10221
Citations number
23
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter (Print) → ACNP
ISSN journal
09538984
Volume
10
Issue
45
Year of publication
1998
Pages
10215 - 10221
Database
ISI
SICI code
0953-8984(1998)10:45<10215:MATPOC>2.0.ZU;2-O
Abstract
We report on magnetization measurements as a function of temperature b etween 0.1 and 10 K for Cu0.98Zn0.02GeO3 single crystals in a magnetic held up to 14 T. The successive antiferromagnetic order and the spin- Peierls (SP) transition are confirmed. In the SP state, the paramagnet ic contribution due to the spins induced by impurities corresponds to one spin 1/2 per Zn atom. The very specific nature of the low-temperat ure antiferromagnetic state coexisting with the dimerized spin-Peierls state is also revealed in the magnetization curves.