The Fermi velocity is the velocity associated with the Fermi energy by solving
for
(Eisberg and Resnick 1985, p. 479).
Fermi Energy, Fermi Momentum, Fermi Temperature, Fermion
References
Eisberg, R. and Resnick, R. Quantum Physics of Atoms, Molecules, Solids, Nuclei, and Particles, 2nd ed. New York: Wiley, 1985.