Effect of a thin-film phase-transition material on surface acoustic wave propagation

  • R H Hemphill
  • Published 1984 in IEEE 1984 Ultrasonics Symposium


The electrical conductivity of a material adjacent to the surface of a piezoelectric may influence the energy loss and/or phase velocity of a propagating surface acoustic wave (SAW). Several transitionmetal oxides and sulfides exhibit a semiconductor-to-metal phase transition, and these materials may be useful in creating programmable SAW deviees. This work… (More)


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