Determination of SAW phase velocities on the nanoscale
This paper reports about the first determination of the phase velocity of surface acoustic waves (SAWs) on the nanometer scale. With a scanning acoustic force microscope (SAFM) a maximum lateral resolution of 19.9 nm has been achieved. This is almost two orders of magnitude better than the resolutio...
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| Fformat: | Conference item |
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1996
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| _version_ | 1826261088744767488 |
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| author | Hesjedal, T Chilla, E Frohlich, H |
| author_facet | Hesjedal, T Chilla, E Frohlich, H |
| author_sort | Hesjedal, T |
| collection | OXFORD |
| description | This paper reports about the first determination of the phase velocity of surface acoustic waves (SAWs) on the nanometer scale. With a scanning acoustic force microscope (SAFM) a maximum lateral resolution of 19.9 nm has been achieved. This is almost two orders of magnitude better than the resolution of standard quantitative acoustic microscopy. The key of measuring the phase of high frequency signals with a slowly responding SAFM cantilever is frequency mixing at its non-linear force curve. For demonstrating its abilities SAW dispersion was studied on Au layers of different thicknesses by SAFM over a lateral distance of down to 200 nm. |
| first_indexed | 2024-03-06T19:16:05Z |
| format | Conference item |
| id | oxford-uuid:186c10bf-12a0-4341-9474-173d00c8e6b5 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:16:05Z |
| publishDate | 1996 |
| record_format | dspace |
| spelling | oxford-uuid:186c10bf-12a0-4341-9474-173d00c8e6b52022-03-26T10:43:07ZDetermination of SAW phase velocities on the nanoscaleConference itemhttp://purl.org/coar/resource_type/c_5794uuid:186c10bf-12a0-4341-9474-173d00c8e6b5Symplectic Elements at Oxford1996Hesjedal, TChilla, EFrohlich, HThis paper reports about the first determination of the phase velocity of surface acoustic waves (SAWs) on the nanometer scale. With a scanning acoustic force microscope (SAFM) a maximum lateral resolution of 19.9 nm has been achieved. This is almost two orders of magnitude better than the resolution of standard quantitative acoustic microscopy. The key of measuring the phase of high frequency signals with a slowly responding SAFM cantilever is frequency mixing at its non-linear force curve. For demonstrating its abilities SAW dispersion was studied on Au layers of different thicknesses by SAFM over a lateral distance of down to 200 nm. |
| spellingShingle | Hesjedal, T Chilla, E Frohlich, H Determination of SAW phase velocities on the nanoscale |
| title | Determination of SAW phase velocities on the nanoscale |
| title_full | Determination of SAW phase velocities on the nanoscale |
| title_fullStr | Determination of SAW phase velocities on the nanoscale |
| title_full_unstemmed | Determination of SAW phase velocities on the nanoscale |
| title_short | Determination of SAW phase velocities on the nanoscale |
| title_sort | determination of saw phase velocities on the nanoscale |
| work_keys_str_mv | AT hesjedalt determinationofsawphasevelocitiesonthenanoscale AT chillae determinationofsawphasevelocitiesonthenanoscale AT frohlichh determinationofsawphasevelocitiesonthenanoscale |