Investigation of New Intermetallic Bonds and Molecules by Knudsen Effusion Mass Spectrometry Integrated with ab Initio Calculations

Abstract

Abstract:The recent work of the authors' group in the field of KEMS studies of intermetallic gaseous molecules is reviewed. Examples are given of systems such as intragroup 14 diatomic molecules, -tri-and tetratomic species in the SiSn systems, and diatomic species containing Group 11 elements. Special attention is given to species containing heavy metals, where relativistic effects can play an important role in the stabilization or destabilization of the chemical bond. The results of the ab initio investigation of the same species at various levels of theory, up to CCSD(T), are also reported, showing the importance of combining the experimental and theoretical study of intermetallic molecules.

Single Crystalline Germanium-Lead Alloy on Germanium Substrate Formed by Pulsed Laser Epitaxy

“…equilibrium phase diagram, 3 dissociation energy, 4 and intermetallic bond. 5 One experimental report on GePb is about the electrical properties as a function of Pb mole fraction. 6 Recently, there is a report claiming that GePb could be a direct bandgap material for substitutional Pb concentration less than 1%.…”