Issue
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-859 - C8-860
DOI https://doi.org/10.1051/jphyscol:19888388
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-859-C8-860

DOI: 10.1051/jphyscol:19888388

MAGNETIC ORDER AND ANISOTROPY IN FERRIMAGNETIC CHAINS OF Mn(II) IONS AND NITRONYL-NITROXIDE RADICALS

A. Ganeschi1, D. Gatteschi1, J. P. Renard2, P. Rey3 et R. Sessoli1

1  Dipartimento di Chimica, Università di Firenze, Via Maragliano 75/77, 50144, Firenze, Italy
2  Institut d'Electronique Fondamentale, CNRS UA 22, Bât. 220, Université Paris Sud, 91405, Orsay Cedex, France
3  CENG-DRF, Laboratoire de Chimie, 85X, 38041 Grenoble Cedex, France


Abstract
The magnetic properties of single crystals of Mn (hfac)2 NITR with NITR = nitronyl-nitroxide radical with different substituents R have been investigated. The ferrimagnetic chains of alternating Mn II ions and radicals show 3D ferromagnetic order below about 8 K. The anisotropic behaviour is interpreted by taking into account dipolar interactions.