Solitary Nanostructures Produced by Ultrashort Laser Pulse

Table 1 Parameters of the MD-MC simulation runs

#	N _atom/10⁶	χ cm ²/s	L _box	d _f	v _0σ	v _0χ
20	6.0	0.09	140	5.1	1.3	1.6
23	6.0	0.17	140	5.1	2.6	1.6
30	44	0.17	270	10	1.9	3
3	192	0	620	8.3	2.6	∞
21	6.0	0.09	140	5.1	5.2	6.3
22	6.0	0.09	140	5.1	10	13
25	6.0	0.17	140	5.1	5.2	3.2
26	2.1	0.17	140	1.8	6.2	6.3
27	2.1	0.17	140	1.8	4	4.1
28	6.0	0.17	140	5.1	10	6.3
29	6.0	0.17	140	5.1	10	4.3
29a	6.0	0.17	140	5.1	10	5.3
31	44	0.17	270	10	3.8	3.2

Number of millions of atoms is given in the second column. Monte Carlo (MC) algorithm allows to vary electron heat conduction κ and hence the heat diffusion coefficient χ. We adjust χ to correspond to the experimental values of v _0σ and v _0χ (see Fig. 2), while having smaller spatial scales in a simulation. The rectangle of the simulation box has a square cross-section L _box×L _box in the plane of a target. Values L _box and d _f are given in [nm]