Drift velocity (\(v_{\rm{d}}\)) of charge carriers divided by the electric field strength (\(E\)). \[\mu = v_{\rm{d}}/E \quad (\rm{unit}{:}\ \pu{m2 V-1 s-1})\]
Source: PAC, 2022, 94, 15. (Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)) on page 18 [Terms] [Paper]