Influence of Magnetic Ordering on the Low-Temperature Electrical Resistance of Dilute Cd-Mn and Zn-Mn Alloys
- 10 November 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 163 (2), 517-522
- https://doi.org/10.1103/physrev.163.517
Abstract
The low-temperature electrical resistivity and superconducting critical temperature of a series of Cd-Mn alloys containing up to 0.38 at.% Mn and the electrical resistivity of a series of Zn-Mn alloys containing up to 0.30 at.% Mn have been measured betwee 0.4 and 30°K. Resistivity minima and maxima are observed in both alloy systems. The suppression of the critical temperature in Cd-Mn alloys is 44°K/at.%, which is comparable to that found for the previously investigated Zn systems. Both Cd and Zn alloy systems exhibit a Kondo resistivity term. This term is cut off in the Cd-Mn system by what is believed to be magnetic ordering. The Cd-Mn data are analyzed using Silverstein's theory, where it is deduced that the temperature dependence of the magnetic ordering is governed by a behavior. The Zn-Mn alloys exhibit a very broad maximum, and it is believed that magnetic ordering becomes significant at temperatures higher than the resistance maximum. The eventual decrease in resistivity at much lower temperatures is considered a result of spin compensation in the presence of magnetic ordering.
Keywords
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