Abstract
Critical magnetic scattering experiments on the simple ionic antiferromagnet KMnF3 are described. The observed intensity distributions are compared with those calculated from the Van Hove theory for quasi-elastic scattering using an experimentally determined resolution function. Excellent agreement is obtained with the Ornstein-Zernike form for the radial dependence of the correlation function in the temperature range 1.002<T/Tc<1.1. The correlation range is found to increase from 12 Å at T/Tc=1.1 to 200 Å at T/Tc=1.002 and the inverse staggered susceptibility is found to follow very closely a 43 power law dependence on T−Tc. The results are also compared with recent results on ferromagnetic metals.
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Dates
Type | When |
---|---|
Created | 20 years, 4 months ago (April 22, 2005, 1:06 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 4, 2024, 12:01 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 4, 2024, 1:05 a.m.) |
Issued | 59 years, 5 months ago (March 1, 1966) |
Published | 59 years, 5 months ago (March 1, 1966) |
Published Print | 59 years, 5 months ago (March 1, 1966) |
@article{Cooper_1966, title={Critical Magnetic Scattering from KMnF3}, volume={37}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1708327}, DOI={10.1063/1.1708327}, number={3}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Cooper, M. J. and Nathans, R.}, year={1966}, month=mar, pages={1041–1047} }