It is shown that the "side-jump" $\Delta \overrightarrow{\mathrm{r}}=\frac{\overrightarrow{\mathrm{p}}\times \overrightarrow{\mu }}{2mce}$, caused by spin-orbit interaction, cannot give rise to a transverse velocity in the steady state, in which $〈\frac{\mathrm{dp}}{\mathrm{dt}}〉=0\mathrm{}$.

• Received 20 November 1972

DOI:https://doi.org/10.1103/PhysRevB.8.2349