Quantum effects in the case of 6Li+ and 7Li+ ions evolving in a neutral 6Li gas at a wide range of temperatures

Abstract

This work deals with the quantum-mechanical calculation of the temperature-dependent mobility of ionic lithium atoms diffusing in their parent gas. The computation of the quantal phase shifts in connection with the gerade and ungerade potential-energy curves, through which Li⁺ approaches Li(2s), leads to the computation of the charge-transfer and diffusion cross sections. The behavior of the coefficients of diffusion and mobility with temperature is also examined. Throughout this work, the isotopic effects in the ⁶Li⁺–⁶Li and ⁷Li⁺–⁶Li collisions are emphasized.