Development of acoustic transducers for use in the parametric pumping of spin waves Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/4b29b893n

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  • The work detailed here is the development of simulations and fabrication techniques used for the construction of thin-film acoustic transducers for use in the parametric pumping of spin waves. The Mason Model, a 1-D equivalent circuit simulating the responses of multilayer acoustic transducers, is implemented using ABCD-parameters in MATLAB to determine the expected response from fabricated devices. The simulation is tested by varying device parameters and comparing the changes in device resonance response to those of prior published results. Three-layer thin-film acoustic transducers were also fabricated. These transducers use zinc oxide (ZnO) as a piezoelectric layer with aluminum (Al) electrodes. Construction is accomplished using the common thin-film fabrication techniques of sputtering, thermal evaporation, etching, and lift-off patterning processes. The response of the fabricated transducers is compared to that of the simulated response by observing the transducer's resonance frequency and characteristics. These results are used to validate the simulation and the transducer fabrication process. Finally, their usefulness for the design and fabrication of an acoustic spin wave amplification system is considered.
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  • description.provenance : Made available in DSpace on 2013-03-29T21:13:12Z (GMT). No. of bitstreams: 1 GrossJonahM2013.pdf: 10144286 bytes, checksum: 9b8de27223941e2a05d07aec5171af83 (MD5) Previous issue date: 2013-03-07
  • description.provenance : Approved for entry into archive by Julie Kurtz(julie.kurtz@oregonstate.edu) on 2013-03-29T17:25:54Z (GMT) No. of bitstreams: 1 GrossJonahM2013.pdf: 10144286 bytes, checksum: 9b8de27223941e2a05d07aec5171af83 (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2013-03-29T21:13:12Z (GMT) No. of bitstreams: 1 GrossJonahM2013.pdf: 10144286 bytes, checksum: 9b8de27223941e2a05d07aec5171af83 (MD5)
  • description.provenance : Submitted by Jonah Gross (grossjo@onid.orst.edu) on 2013-03-29T10:31:41Z No. of bitstreams: 1 GrossJonahM2013.pdf: 10144286 bytes, checksum: 9b8de27223941e2a05d07aec5171af83 (MD5)

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