Work

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

Year: 2016

Type: article

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.

Source: The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics

DOI: 10.1080/14786435.2016.1216657

Authors: Charles C. Rinzler, Antoine Allanore

Institution: Massachusetts Institute of Technology

Language: English

Topic: Thermodynamic and Structural Properties of Metals and Alloys

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: Hertz Foundation, Air Force Office of Scientific Research

Awards: G1523888516, G5865507993