Connecting electronic entropy to empirically accessible electronic properties in high temperature systems

TitleConnecting electronic entropy to empirically accessible electronic properties in high temperature systems
Publication TypeJournal Article
Year of Publication2016
AuthorsRinzler, CC, Allanore, A
JournalPhilosophical Magazine
Volume96
Issue29
Pagination3041 - 3053
Date Published2016///
ISBN Number1478-6435
Keywordscomponents, electronic entropy, Entropy, liquid, molten semiconductor, tellurium, thallium, thermoelectricity, Thermopower
Abstract

A quantitative theoretical model connecting the thermopower and electronic entropy of molten systems is proposed, the validity of which is tested for semiconductors and metallic materials. The model accurately provides the entropy of mixing for molten semiconductors, as shown for the representative system Te-Tl. Predictions of the electronic entropy of fusion for compounds are in agreement with available data and offer a novel means to identify the correct electrical conductivity model when Hall measurements are not available. Electronic entropy for molten semiconductor and metallic systems is shown to reflect order in the molten and solid state. The model proves accurate at predicting the electronic state entropy contribution to the electronic entropy of mixing.

Short TitlePhilos. Mag.