Mass transport is described by a
mobility \(b\), defined by: \[b_{i} = \frac{\nu _{i}}{\boldsymbol{F}_{i}}\] where \(\nu _{i}\) is the average
drift velocity and \(\boldsymbol{F}_{i}\) is the
force on particle \(i\).
Source: PAC, 1999,
71, 1307. (
Definitions of Terms for Diffusion in the Solid State) on page 1319 [
Terms] [
Paper]