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Materials science

Changing face of the chameleon

Chalcogenide materials form the basis of CD and DVD technologies. But an identity crisis looms in the wider field: what role do atomic reconfiguration, electronic processes and ionic movement play in these materials?

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Figure 1: Two types of chalcogenide device.


  1. *European Symposium on Phase Change and Ovonic Science, Cambridge, 3–6 September 2005;

  2. Symposium on Memory Storage Materials. European Congress on Advanced Materials and Processes, 5–8 September 2005;


  1. Ovshinsky, S. R. Phys. Rev. Lett. 21, 1450–1453 (1968).

    Article  ADS  Google Scholar 

  2. Mott, N. F. in Nobel Lectures, Physics 1971–1980 (ed. Lundqvist, S.) 403–413 (World Scientific, Singapore, 1992);

    Google Scholar 

  3. Adler, D. et al. J. Appl. Phys. 51, 3289–3309 (1980).

    Article  ADS  CAS  Google Scholar 

  4. Vezzoli, G. C., Walsh, P. J. & Doremus, L. W. J. Non-Cryst. Solids 18, 333–375 (1975).

    Article  ADS  CAS  Google Scholar 

  5. Strand, D. J. Optoelectron. Adv. Mater. 7, 1679–1690 (2005).

    CAS  Google Scholar 

  6. Lankhorst, M. H. R. et al. Nature Mater. 4, 347–352 (2005).

    Article  ADS  CAS  Google Scholar 

  7. Gibson, G. A. et al. Appl. Phys. Lett. 86, 051902 (2005).

    Article  ADS  Google Scholar 

  8. Ovshinsky, S. R. Jpn J. Appl. Phys. Pt 1 43 (7B), 4695–4699 (2004).

    Article  CAS  Google Scholar 

  9. Terabe, K. et al. Nature 433, 47–50 (2005).

    Article  ADS  CAS  Google Scholar 

  10. Kozicki, M. N., Park, M. & Mitkova, M. IEEE Trans. Nanotechnol. 4, 331–338 (2005).

    Article  ADS  Google Scholar 

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Greer, A., Mathur, N. Changing face of the chameleon. Nature 437, 1246–1247 (2005).

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