| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1511 - C8-1512 | |
| DOI | https://doi.org/10.1051/jphyscol:19888696 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1511-C8-1512
DOI: 10.1051/jphyscol:19888696
Department of Physics, Clark University, 950 Main Street, Worcester, MA 01610, U.S.A.
J. Phys. Colloques 49 (1988) C8-1511-C8-1512
DOI: 10.1051/jphyscol:19888696
PRECISION DETERMINATION OF EXCHANGE STRENGTHS IN MAGNETIC DIMERS VIA BIREFRINGENCE
C. P. Landee, K. A. Reza et J. J. M. WilliamsDepartment of Physics, Clark University, 950 Main Street, Worcester, MA 01610, U.S.A.
Abstract
We report the first results on linear birefringence studies of dimeric crystals. The compounds investigated were CuX2.2TMSO, X = Br, Cl, two Heisenberg S = 1/2 antiferromagnetic dimers. The exchange constants derived from the birefringenc data are J (Br)/k = -23.0 K and J (Cl)/k = -13.0 K, in good agreement with previous estimates. This study demonstrates the feasibility of using birefringence to study interactions in cluster compounds.