The g-Factors of Interacting Electrons in Silicon Inversion Layers

Abstract

Landau’s theory of Fermi liquid is applied to obtain the quasi-particle parameters of the interacting two-dimensional electrons in the surface inversion layers of silicon. The calculated g-factor exhibits a good agreement with the experimental results of Fang and Stiles over a wide range of electron concentration and supports on a firmer ground Janak’s original suggestion that the deviation of the g-factor from the bulk value is caused by the exchange interaction among surface electrons. Similar effects on the effective mass are briefly discussed.