Effect of nonmagnetic impurities on the spin-Peierls system: p-CyDOV

Citation
K. Mukai et al., Effect of nonmagnetic impurities on the spin-Peierls system: p-CyDOV, PHYSICA B, 284, 2000, pp. 1647-1648
Citations number
2
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
2
Pages
1647 - 1648
Database
ISI
SICI code
0921-4526(200007)284:<1647:EONIOT>2.0.ZU;2-Z
Abstract
The magnetic susceptibilities (chi(M)) of diluted p-CyDOV radical crystals (p-CyDOV)(1 - x)(p-CyDOV-H)(x) (x = 0-0.10), were measured to study the eff ects of nonmagnetic impurities, p-CyDOV-H (amine precursor of p-CyDOV), on the spin-Peierls (SP) transition of p-CyDOV radical crystal. The SP transit ion temperature (T-SP = 15 K) decreased rapidly with increasing x and the S P state disappeared around x = 0.07. The chi(M) of diluted radical crystal with x = 0.01-0.05 below Ts, can be explained by the sum of the susceptibil ities of the spin-Peierls state (chi(SP)), antiferromagnet (chi(AFM)), and Curie impurity (chi(Curic)). (C) 2000 Elsevier Science B.V. All rights rese rved.