The specific heats of tantalum in the normal and in the superconductive state
作者： W.H. Keeson , M. Desirant
DOI: 10.1016/S0031-8914(41)90048-4
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摘要: Resume Les auteurs ont etudie, les chaleurs specifiques du tantale dans le domaine de l'helium liquide. A l'etat normal, se laissent representer par la formule: C n = 464.5 (T/264.5) 3 + 0.00141 T. Une discussion indique que densite des niveaux d'energie bande 5d est beaucoup plus elevee correspondant a electrons completement libres, il semble exister une interaction appreciable entre spins electroniques. temperature 4.155°K, variation brusque debute et s'etend jusque 3.955°K; cet intervalle l'echantillon etudie passe supraconducteur. mesures indiquent supraconducteur, pour temperatures inferieures 2.5°K, suivent loi en T3 Debye, caracteristique θDetant egale 113°K. Pour superieures tous points s'ecartent d'une Debye. Des effectuees presence champs magnetiques transition supraconducteur normal termine courbe-seuil relative resistance electrique.
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