Shape dynamics during deposit of simple metal clusters on rare gas matrices

Details Shape dynamics during deposit of simple metal clusters on rare gas matrices Shape dynamics during deposit of simple metal clusters on rare gas matrices

2007-07-20

arxiv.org/abs/0707.3022v1

Phys. Rev. A 76 (2007) 043201

Physics

Condensed Matter

Other Condensed Matter

8 pages, 8 figures, accepted in Phys. Rev. A (2007)

Scientific paper

10.1103/PhysRevA.76.043201

Using a combined quantum mechanical/classical method, we study the collisions of small Na clusters on large Ar clusters as a model for cluster deposit. We work out basic mechanisms by systematic variation of collision energy, system sizes, and orientations. The soft Ar material is found to serve as an extremely efficient shock absorber. The collisional energy is quickly transfered at first impact and the Na clusters are always captured by the Ar surface. The distribution of the collision energy into the Ar system proceeds very fast with velocity of sound. The relaxation of shapes goes at a slower pace using times of several ps. It produces a substantial rearrangement of the Ar system while the Na cluster remains rather robust.

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