Acoustic surface waves on metallized and unmetallized Bi 12GeO20

E. A. Kraut, B. R. Tittmann, L. J. Graham, T. C. Lim

Research output: Contribution to journalArticle

21 Scopus citations


New values for the elastic and piezoelectric constants of Bi 12GeO20 and for their temperature derivatives are reported. With these new constants, the predicted value of Δv/v for acoustic surface waves is significantly increased. This prediction has been verified by measurements of the acoustic surface-wave velocity on the metallized and unmetallized (001) surface of Bi12GeO20 and by comparing the observed values with theory. On the (001) plane, the maximum Δv/v occurs in the 〈110〉 direction. The predicted Δv/v is 66×10-4 and the experimentally observed value is (77±15)×10-4.

Original languageEnglish (US)
Pages (from-to)271-272
Number of pages2
JournalApplied Physics Letters
Issue number7
StatePublished - Dec 1 1970


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Kraut, E. A., Tittmann, B. R., Graham, L. J., & Lim, T. C. (1970). Acoustic surface waves on metallized and unmetallized Bi 12GeO20. Applied Physics Letters, 17(7), 271-272.