Semiconductor Sources and Spin-Polarized Electron Detectors in Studies of Resonant Electron Scattering

Abstract

We present the results on the created semiconductor source of spin-polarized electrons and spin detector, as well as the concept of their integration into the dissociative electron attachment (DEA) spectroscopy with consideration for the necessary values of electron-beam parameters, at which the resonant scattering and dissociative attachment are observed. The design of a setup for studying the resonant scattering of spin-polarized electrons by the DEA spectroscopy method is described, which will allow for studies of the intramolecular dynamics of isolated negative ions. The main goal of the design and fabrication of the setup is to make it possible to study the interaction of spin-polarized electrons with chiral molecules, which will provide the experimental verification of the Vester–Ulbricht hypothesis on the origin of biological homochirality. In addition to this fundamental issue, the expected results of the proposed experiment are important for promising areas of spintronics and for the establishment of molecular mechanisms of various biological effects of enantiomers of pharmaceuticals.