  Nanodiamond exhibits unpaired electrons in magnetization, EPR, NMR and Auger
relaxation. Wave functions and eigenenergies of a bound electron in a
nanodiamond crystal have been calculated. It has been proved by using quantum
mechanical analysis that unpaired electrons are self-condition of a nanodiamond
as a limited crystal according to Tamm theory of surface states. The surface
electron floating over a nanodiamond gives paramagnetic response and stabilizes
the nanoparticle at small range of size. Possibly the spin of the floating
electron can be used for floating point calculation in future quantum computers
on the base of nanodiamond qubits.
