What is it about?

This study deals with the important scattering approximation called the Born approximation, which is widely applied for problems met in solid-state physics and chemistry. Its time-dependent counterpart is the Fermi's golden rule. The paper shows the single-particle relaxation time, an important many-body property of the quasi-particles, electrons in our case, can be computed exactly by means of Calogero's variable phase method (VPM) when the inter-particle potential for electron-impurity interaction is assumed to be of Thomas-Fermi form.

Featured Image

Why is it important?

This work is important as it clearly shows where the first Born approximation holds for the material parameters under scrutiny. Indeed the variable phase method provides a criterion for the validity of the Born approximation, requiring that the scattering phase shifts be smaller then Pi over 2, and more generally smaller than unity

Read the Original

This page is a summary of: Single-particle relaxation time in doped semiconductors beyond the Born approximation, Journal of Applied Physics, July 2019, American Institute of Physics, DOI: 10.1063/1.5081631.
You can read the full text:



Be the first to contribute to this page