Morphological Evolution of Ag/Mica Films Grown by Pulsed Laser Deposition

Abstract

Many vapor-deposited metal-on-insulator films exhibit a morphological progression with increasing thickness consisting of several distinct stages: (1) nucleation of 3-dimensional na-nocrystalline islands; (2) elongation of the islands; (3) film percolation. Here we report a study of this progression during Pulsed Laser Deposition (PLD), a technique for film deposition that differs from thermal deposition in that the depositing species arrive in short energetic bursts, leading to instantaneous deposition fluxes orders of magnitude higher than can be achieved in thermal growth. Atomic Force Microscopy reveals that advancement through this same morphological progression occurs at lower thickness in PLD films relative to films grown under comparable conditions by thermal deposition, with PLD films having lower RMS roughness at a given thickness. We also observe that for a constant amount deposited per pulse, films deposited at higher laser pulse frequency are further advanced in morphological state. Kinetic Monte Carlo simulations reveal that PLD nucleation behavior differs from that of thermally deposited films, and this can account for the observed differences. Simulations also reveal a scaling of the percolation thickness with pulse frequency that is consistent with experiment.

This is a preview of subscription content, access via your institution.

We’re sorry, something doesn't seem to be working properly.

Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

References

  1. 1

    D. W. Pashley, M. H. Jacobs, M. J. Stowell, et al., Philosophical Magazine 10, 127 (1964).

    CAS  Article  Google Scholar 

  2. 2

    A. A. Baski and H. Fuchs, Surface Science 313, 275 (1994).

    CAS  Article  Google Scholar 

  3. 3

    G. Jeffers, M. A. Dubson, and P. M. Duxbury, Journal of Applied Physics 75, 5016 (1994).

    CAS  Article  Google Scholar 

  4. 4

    X. Yu, P. M. Duxbury, G. Jeffers, et al., Physical Review B (Condensed Matter) 44, 13163 (1991).

    CAS  Article  Google Scholar 

  5. 5

    P. Brault, A.-L. Thomann, and C. Andreazza-Vignolle, Surface Science 406, L597 (1998).

  6. 6

    B. J. Briscoe and K. P. Galvin, Physical Review A 43, 1906 (1991).

    CAS  Article  Google Scholar 

  7. 7

    F. A. Nichols and W. W. Mullins, Journal of Applied Physics 36, 1826 (1965).

    Article  Google Scholar 

  8. 8

    J. D. Erlebacher, in Dynamics of Crystal Surfaces and Interfaces, edited by P. M. Duxbury and T. Pence (Plenum, New York, 1997).

  9. 9

    J. Carrey and J.-L. Maurice, Physical Review B (Condensed Matter and Materials Physics) 63, 245408/1 (2001).

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Jeffrey M. Warrender.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Warrender, J.M., Aziz, M.J. Morphological Evolution of Ag/Mica Films Grown by Pulsed Laser Deposition. MRS Online Proceedings Library 749, 31 (2002). https://doi.org/10.1557/PROC-749-W3.1

Download citation