Measurement of the Debye-Waller factor for He-LiF(001)

Gianfranco Vidali, Charles Hutchings

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We have measured the attenuation of a supersonic helium beam scattered from the (001) surface of LiF as a function of surface temperature. We found that over an extended temperature range (140500 K) a simple model for the Debye-Waller factor can explain the data. At higher temperatures (500650 K) anharmonic effects become noticeable. Our data indicate that present models describing the Debye-Waller attenuation need improvements in this temperature range. The observed sudden drop of the He-beam reflected intensity at about 780 K is discussed in terms of surface disorder.

Original languageEnglish (US)
Pages (from-to)10374-10377
Number of pages4
JournalPhysical Review B
Issue number17
StatePublished - 1988

ASJC Scopus subject areas

  • Condensed Matter Physics


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