Effect of non-stoichiometry on the magnetic properties of NiS2
- 20 August 1973
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 6 (16), L320-L323
- https://doi.org/10.1088/0022-3719/6/16/005
Abstract
Susceptibility measurements in magnetic fields up to 40 kG between 4 and 300 K on nickel disulphide samples in the composition range NiS1.91-NiS2.09 show that stoichiometric NiS2.00 is a Curie-Weiss paramagnetic substance. A sharp magnetic transition occurs at 31 K on samples which lie below stoichiometry. Below this temperature a low magnetic moment (-1 mu B/at.Ni) is obtained by susceptibility measurements. The presence of two phases is considered in order to understand what kind of transition occurs. The possible existence of a second magnetic transition at higher temperature is also discussed.Keywords
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