Reduction in crystallization time of Sb:Te films through addition of Bi

R. E. Simpson, D. W. Hewak, P. Fons, J. Tominaga, S. Guerin, B. E. Hayden

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The electrical, optical, and phase change properties of bismuth doped Sb8 Te2 films have been characterized. Thin films of the material, with up to 15 at. % percent Bi, have been synthesized; amorphous films were stable at room temperature with a Bi concentration of up to 13 at. %. The effect of Bi on the phase change properties of the film is shown to reduce the crystallization time by an order of magnitude while the crystallization activation energy reduction is minimal; 0.2 eV. Bismuth doped Sb8 Te2 materials show potential as the active material in phase change data storage media.

Original languageEnglish
Article number141921
JournalApplied Physics Letters
Issue number14
Publication statusPublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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