Critical scattering in dilute ferromagnets
- 15 March 1984
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 55 (6) , 1688-1690
- https://doi.org/10.1063/1.333444
Abstract
A troubling aspect of dilute magnetism is the failure of the spin-spin correlation length, measured in neutron scattering, to diverge at TC. New data for (FepNi1−p)80P20 show an increase in critical scattering at small Q (≲0.02 Å−1) near TC. We propose, using scaling arguments, that a change occurs in effective correlation length from a finite 1D length at Q≫ξ−1p to a divergent 3D length for Q≪ξ−1p, where ξp is the geometrical connectedness length.This publication has 11 references indexed in Scilit:
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