Abstract
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 language | English (US) |
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Pages (from-to) | 271-272 |
Number of pages | 2 |
Journal | Applied Physics Letters |
Volume | 17 |
Issue number | 7 |
DOIs | |
State | Published - 1970 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)