Supraleitung und spezifische Wärme von Titan-Rhodium-Legierungen

The specific heats of Ti-Rh alloys have been measured between 0.9 and 8 °K for atomic percent Rh concentration between 0 and 10. The transition temperatures of the hexagonal (0–2 At-% Rh) and the cubic (3–10 At-% Rh) phases are given by the calorimetric measurements. The transition temperature and the electronic specific heat increase with Rh-concentration. The influence of the rate of cooling on the transition temperature has been studied for some alloys. The electrically, magnetically, and calorimetrically determined transition temperatures are compared. Contrary to Hf₂Rh and Zr₂Rh down to 1.2 °K Ti₂Rh has not been observed to become superconducting.