Electrical resistivity near the critical boundary of antiferromagnet in NiS2-xSex
- 28 November 1977
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 10 (22), L643-L647
- https://doi.org/10.1088/0022-3719/10/22/006
Abstract
The electrical resistivity at low temperature of metallic NiS2-xSex is measured at a temperature between 4.2 and 300K under high pressure up to 15 kbar. The resistivity is found to obey an expression rho = rho 0+ATn and the coefficient of A has a maximum at the critical boundary of antiferromagnet. The index n decreases from 2.0 to 1.6 as one approaches the critical boundary from the paramagnetic phase. These results seem to be explained by recent theoretical works based on the spin fluctuations.Keywords
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