Electronic Properties of Fine Metallic Particles. III. E.S.R Absorption Line Shape

Abstract

Line shape of E.S.R. absorption by conduction electrons in fine metallic particles is discussed paying main attention to the effects of the quantization of electronic energy levels. Line width and shift is considered to be caused by spin-orbit interaction, which is characterized by a parameter τ= a / V F Δ g 2 , where a , V F and Δ g are the linear dimension of the particles, Fermi velocity and g -shift of the conduction electrons respectively. In order that the effects of energy level quantization be observed, the mean level spacing should be larger than \(\hbar/\tau\) as well as than the Zeeman energy.