Implantation of size-selected Si clusters into graphite

Neuendorf, R.; Palmer, R. E.; Palmer, R.E.; Smith, R.
November 2000
Applied Physics Letters;11/6/2000, Vol. 77 Issue 19
Academic Journal
Molecular dynamics simulations have been performed to explore the implantation of silicon clusters into a graphite substrate to well-defined depths. The cluster sizes range from N=20 up to N=200 atoms per cluster, deposited with kinetic energies from E=500 eV up to E=5000 eV per cluster. We find that the clusters remain intact as coherent, amorphous structures after implantation. The implantation depth is well defined and scales with the kinetic energy of the clusters and the inverse of the cross-sectional area. This indicates a constant decelerating force, associated with the lateral displacement of carbon atoms as the cluster "drills a hole" in the substrate. The main dissipation channels for the energetic silicon clusters are the creation of phonons in the graphite substrate and the breaking of C-C bonds. © 2000 American Institute of Physics.


Related Articles

  • Lamellar nanostructures of silicon heterogeneously solidified on graphite sheets. Li, Y. F.; Yu, H. Q.; Li, H.; Liew, K. M.; Liu, X. F. // Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p163113 

    Molecular dynamics simulations are performed to examine the heterogeneous solidification of silicon on foreign graphite sheets (GSs). It clearly indicates that silicon atoms are concentrated to form hierarchical nanostructures composed of equidistant nanolayers. Graphite plate induces strong...

  • Phonons in graphitic tubules: A tight-binding molecular dynamics study. Yu, Jin; Kalia, Rajiv K.; Vashishta, Priya // Journal of Chemical Physics;10/15/1995, Vol. 103 Issue 15, p6697 

    Using the tight binding molecular dynamics method (TBMD), the structural and dynamical properties of graphitic tubules are studied. The phonon dispersion and density of states of graphitic tubules with various helicities and diameters are calculated. Phonon modes in tubules are softened by the...

  • Ab initio molecular dynamics simulation of laser melting of graphite. Silvestrelli, Pier Luigi; Parrinello, Michele // Journal of Applied Physics;3/1/1998, Vol. 83 Issue 5, p2478 

    Examines how the laser heating of graphite is simulated through the use of the ab initio molecular dynamics, based on finite temperature density functional theory. What laser melting of graphite exhibits; Information on the melting process of graphite; Application of the ab initio molecular...

  • Molecular dynamics simulations of ordered alkane chains physisorbed on graphite. Hentschke, Reinhard; Schürmann, Britta L.; Rabe, Jürgen P. // Journal of Chemical Physics;4/15/1992, Vol. 96 Issue 8, p6213 

    Scanning tunneling microscopy (STM) studies at the interface between the basal plane of graphite and organic solutions or melts of long chain alkanes and alkyl derivatives reveal that the molecules order in lamellae with the main molecular axes oriented parallel to the substrate. Here we employ...

  • Molecular dynamics simulation study of the adsorption of chain alkanes from solution onto graphite. Hentschke, Reinhard; Winkler, Roland G. // Journal of Chemical Physics;10/1/1993, Vol. 99 Issue 7, p5528 

    We use the molecular dynamics simulation method to study the adsorption of an n alkane from a benzene solution onto the basal plane of graphite. We show that it is possible to simulate the entire adsorption process, i.e., the diffusion of the alkanes to the surface, the penetration of the highly...

  • Liquid benzene confined between graphite surfaces. A constant pressure molecular dynamics study. Winkler, Roland G.; Hentschke, Reinhard // Journal of Chemical Physics;10/1/1993, Vol. 99 Issue 7, p5405 

    We derive expressions for the internal and external stress tensor for a molecular system which is periodic in two dimensions and confined by an external potential along the third dimension. Based on the external pressure, we propose an extended-phase-space constant pressure molecular dynamics...

  • Formation of a Buffer Layer for Graphene on C-Face SiC{0001}. He, Guowei; Srivastava, N.; Feenstra, R. // Journal of Electronic Materials;Apr2014, Vol. 43 Issue 4, p819 

    Graphene films prepared by heating the SiC $$ (000\bar{1}) $$ surface (the C-face of the {0001} surface) in a Si-rich environment have been studied using low-energy electron diffraction (LEED) and low-energy electron microscopy. Upon graphitization, an interface with $$ \sqrt {43} \times \sqrt...

  • Molecular orientation effects in gas-surface dynamical processes. Okada, M.; Kasai, T. // European Physical Journal B -- Condensed Matter;May2010, Vol. 75 Issue 1, p71 

    We report studies of chemical reactions on single crystalline Si surfaces induced by oriented molecular beams. We discuss the obtained steric effects on Si from the viewpoint of the strength of the gas-surface interaction, in comparison with the steric effects appearing on the graphite surface....

  • Erratum: Molecular dynamics simulations of ordered alkane chains physisorbed on graphite [J. Chem. Phys. 96, 6213 (1992)]. Hentschke, R.; Schürmann, B. L.; Rabe, J. P. // Journal of Chemical Physics;1/15/1993, Vol. 98 Issue 2, p1756 

    Presents a correction to the article 'Molecular Dynamics Simulations of Ordered Alkane Chains Physisorbed on Graphite,' which appeared in the 1992 issue of the 'Journal of Chemical Physics.'


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics