| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-327 - C8-328 | |
| DOI | https://doi.org/10.1051/jphyscol:19888145 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-327-C8-328
DOI: 10.1051/jphyscol:19888145
1 Physics Department, McMaster University, Hamilton, Ontario L8S 4M1 Canada
2 Department of Physics, University of Keele, Staffordshire ST5 5BG, G.B.
3 Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, U.S.A.
J. Phys. Colloques 49 (1988) C8-327-C8-328
DOI: 10.1051/jphyscol:19888145
A CRITICAL SCATTERING STUDY OF THE HELICAL ANTIFERROMAGNETS Ho AND Dy
B. D. Gaulin1, M. Hagen2 et H. R. Child31 Physics Department, McMaster University, Hamilton, Ontario L8S 4M1 Canada
2 Department of Physics, University of Keele, Staffordshire ST5 5BG, G.B.
3 Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, U.S.A.
Abstract
We have measured the frequency integrated magnetic critical scattering of neutrons from paramagnetic Dy and Ho. Analysis of these data show the paramagnetic to helical antiferromagnetic phase transitions are characterized by the critical exponents ν = 0.57 ± 0.05 and γ = 1.05 ± 0.07 for Dy and ν = 0.57 ± 0.04 and γ = 1.14 ± 0.10 for Ho.