Table 1.

Model condition and simulation parameters

Condition	Parameter
Work material	Germanium
Lattice constant	a = 5.657 Å
Potential for germanium	Tersoff potential
Potential of C-Ge	Morse potential
	De = 0.125778 eV, α = 2.58219 Å−1, 0 r0 = 2.2324 Å
Work dimensions	45 × 27 × 12 nm
Tool-edge radius	10 nm
Tool-nose radius	10 nm
Tool clearance angle	15°
Cutting direction	$\left[\stackrel{-}{1}00\right]$ on (010) surface
	$\left[\stackrel{-}{2}11\right]$ on (111) surface
Depth of cut	1, 2, 3 nm
Cutting speed	400 m/s
Bulk temperature	293 K