Skip to main content
SpringerLink
Log in

Anomalous X-Ray Scattering On Self-Assembled Islands: Direct Evaluation Of Composition Profile, Strain Relaxation, And Elastic Energy

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

The growth of Ge on Si(001) produces a wealth of morphologies of nanocrystals. After the deposition of a two-dimensional Ge film 3.5 monolayers thick, islands are formed, and several shape transitions can be observed depending on the growth temperature, rate and deposited thickness. In this work we combine atomic force microscopy and two different types of measurements of anomalous x-ray scattering to determine this elastic energy both in pyramid and dome shaped islands. By comparing pyramids and domes data, we have observed both an increase of lattice parameter and enhancement of interdiffusion for the domes. These results show that there is a drastic decrease of the elastic energy stored per atom upon this particular shape transition.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. M. Zinke-Allmang, L.C. Feldman, and M. H. Grabow, Surf. Sci. Rep. 16, 377 (1992).

    Google Scholar 

  2. F. M. Ross, J. Tersoff, and R. M. Tromp, Phys. Rev. Lett. 80, 984 (1998).

    Google Scholar 

  3. V.A. Shchukin {etet al.}, Phys.Rev. Lett. 75, 2968 (1995).

    Google Scholar 

  4. I. Daruka and A.-L. Barabasi, Phys. Rev. Lett. 79, 3708 (1997)

    Google Scholar 

  5. G. Medeiros-Ribeiro, A. M. Bratkovski, T. I. Kamins, D. A. A. Ohlberg, and R. Stanley Williams, Science 279, 353 (1998).

    Google Scholar 

  6. J. A. Floro, G. A. Lucadamo, E. Chason, L. B. Freund, M. Sinclair, R. D. Twesten, and R. Q. Hwang, Ph.ys.Rev.Lett. 80, 4717 (1998)

    Google Scholar 

  7. T. I. Kamins, G. Medeiros-Ribeiro, D.A.A. Ohlberg, and R. Stanley Williams, J. Appl. Phys. 85, 1159 (1999)

    Google Scholar 

  8. T. I. Kamins, G. Medeiros-Ribeiro, D.A.A. Ohlberg, and R. Stan Williams, Appl. Phys. A 67, 1 (1998).

    Google Scholar 

  9. S.A. Chaparro, Jeff Drucker, Y. Zhang, D. Chandrasekhar, M.R. McCartney, and David J. Smith, Phys.Rev.Lett. 83, 1199 (1999).

    Google Scholar 

  10. F. Boscherini, G. Capellini, L. Di Gaspare, F. Rosei, N. Motta, and S. Mobilio, Appl. Phys. Lett. 76, 682 (2000).

    Google Scholar 

  11. G. Capellini, M. De Seta, and F. Evangelisti, Appl. Phys. Lett. 78, 303 (2001).

    Google Scholar 

  12. P. D. Miller, C.-P.Liu,W. L. Henstrom, J. M. Gibson,Y. Huang, P. Zhang, T.I. Kamins, D. P. Basile, and R. Stanley Williams, Appl. Phys. Lett. 75, 46 (1999).

    Google Scholar 

Download references

Acknowledgments

The support of the following agencies is gratefully acknowledged: CNPq (Instituto de Nanociências–Milênio), ABTLuS (Brazilian Synchrotron Association), FAPESP (contract 98/14757-4) and FAPEMIG.

Author information

Authors and Affiliations

  1. Departamento de Física, Universidade Federal de Minas Gerais, MG, Brazil

    A. Malachias & R. Magalhães-Paniago

  2. Laboratório Nacional de Luz Síncrotron, Campinas, Brazil

    R. Magalhães-Paniago, G. Medeiros-Ribeiro & S. Kycia

  3. Hewlett-Packard Laboratories, 1501 Page Mill Rd., Palo Alto, CA, 94117, USA

    G. Medeiros-Ribeiro, T.I. Kamins & R. Stan

Authors
  1. A. Malachias
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Magalhães-Paniago
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. Medeiros-Ribeiro
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. Kycia
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. T.I. Kamins
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. R. Stan
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Malachias, A., Magalhães-Paniago, R., Medeiros-Ribeiro, G. et al. Anomalous X-Ray Scattering On Self-Assembled Islands: Direct Evaluation Of Composition Profile, Strain Relaxation, And Elastic Energy. MRS Online Proceedings Library 737, 25 (2002). https://doi.org/10.1557/PROC-737-F2.5

Download citation

  • Published:

  • DOI: https://doi.org/10.1557/PROC-737-F2.5

Search

Navigation