Magnetic Susceptibility of Chromium-Ruthenium Alloys between 300 and 600 K.

摘要

Magnetic susceptibility chi of chromium-ruthenium alloys containing 0.9-, 2.1-, 3.0-, 4.8-, 6.6-, 8.3-, and 10.1-at.% ruthenium has been measured as a function of temperature T between 300 and 600 K. Each of the chi vs T curves exhibits a well-defined knee at the Neel temperature Tn. Experimental results indicate that there is no localized magnetic moment on ruthenium atoms above Tn. The temperature dependence in the antiferromagnetic region between 350 K and Tn is described by extending the Fedders-Martin theory for itinerant-electron antiferromagnets. (Author)