Observation of a magnetization plateau of 1/4 in a novel double-spin chainof ferromagnetic dimers formed by organic tetraradicals

Citation
T. Goto et al., Observation of a magnetization plateau of 1/4 in a novel double-spin chainof ferromagnetic dimers formed by organic tetraradicals, PHYSICA B, 294, 2001, pp. 43-46
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
0921-4526 → ACNP
Volume
294
Year of publication
2001
Pages
43 - 46
Database
ISI
SICI code
0921-4526(200101)294:<43:OOAMPO>2.0.ZU;2-I
Abstract
We have measured the susceptibility and low-temperature magnetization curve of the novel organic tetraradical crystal BIP-TENO. The susceptibility dat a indicate that double-spin chains of ferromagnetic dimers are formed in th e; crystal and the spin system is regarded as an S = 1 antiferromagnetic tw o-leg ladder. The magnetization is nearly zero up to 100kOe and the spin ga p is closed at 116kOe. Above 120kOe, the magnetization increases and a plat eau corresponding to a quarter of the saturation magnetization appears at 4 48 kOe. (C) 2001 Elsevier Science B.V. All rights reserved.