2022/10/18 by De Nittis, Giuseppe, Polo, Danilo
#81R60 #82B44 #FOS: Physical sciences #Mathematical Physics (math-ph) #Primary:35Q41 #Secondary:81Q70
paper · doi:10.48550/arxiv.2210.09860
Deformations in piezoelectric materials lead to conduction effects, which are due to two contributions: the relative displacements of the ionic cores, and the so-called orbital polarization. This work is devoted to the rigorous derivation of the celebrated King-Smith and Vanderbilt formula for orbital polarization in a generalized setting that includes continuous random systems among others.