| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-857 - C8-858 | |
| DOI | https://doi.org/10.1051/jphyscol:19888387 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-857-C8-858
DOI: 10.1051/jphyscol:19888387
1 Department of Inorganic Chemistry, University of Florence, Florence, Italy
2 Laboratoire de Spectrochimie des Eléments de Transition, UA 420, Université de Paris-Sud, 91405 Orsay, France
J. Phys. Colloques 49 (1988) C8-857-C8-858
DOI: 10.1051/jphyscol:19888387
MAGNETISM AND EPR SPECTRA OF Mn +2Cu2+ FERRIMAGNETIC CHAINS
O. Guillou1, D. Gatteschi1, C. Zanchini1, R. Sessoli1, O. Kahn2, M. Verdaguer2 et Y. Pei21 Department of Inorganic Chemistry, University of Florence, Florence, Italy
2 Laboratoire de Spectrochimie des Eléments de Transition, UA 420, Université de Paris-Sud, 91405 Orsay, France
Abstract
Single crystal EPR spectra of the heterobimetallic chain compounds MnCu (pba) (H2O)3 .2H2O (1) and MnCu (pbaOH) (H2O)3(2) where pba is 1,3-propylene-bis(oxamato) and pbaOH is 2-hydroxy-1,3-propylene-bis(oxamato) have been recorded in the 4.2-300 K temperature range. The angular dependence of the linewidths was interpreted in terms of dipolar interactions. The anisotropic shifts in the resonance fields observed at low temperature, due to short range order effects, are in agreement with the magnetic anisotropy measurements. EPR and magnetic data allow to propose the spin distribution in both compounds.