Other Major Properties Related to the Energy-Band Structure

Abstract

A deformation potential (DP) is a quantity proportional to a matrix element of an operator belonging to a crystal deformation between a final and initial electron (or hole) state. It usually has the units of eV or eV/A. The DP is called an intravalley DP if the wavevectors of the final and initial states are within the same electron valley; otherwise it is called an intervalley DP. Also, it is called an intraband DP if the band indices of the final and initial states are the same; otherwise it is called an interband DP. A review of the importance of these quantities and their definition and methods of calculation was given