Theory of cross phenomena and their coefficients beyond Onsager theorem

Materials Research Letters

Zi-Kui Liu¹ 

[1] Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA;

关键词: Thermoelectric;    thermodiffusion;    electromigration;    electrocaloric;    electromechanical;   

DOI  :  10.1080/21663831.2022.2054668

来源: DOAJ

【 摘 要 】

Cross phenomena, representing responses of a system to external stimuli, are ubiquitous from quantum to macro scales. The Onsager theorem is often used to describe them, stating that the coefficient matrix of cross phenomena connecting the driving forces and the fluxes of internal processes is symmetric. Here we show that this matrix is intrinsically diagonal when the driving forces are chosen from the gradients of potentials that drive the fluxes of their respective conjugate molar quantities in the combined law of thermodynamics including the contributions from internal processes. Various cross phenomena are discussed in terms of the present theory.

【 授权许可】

Unknown