High-O coplanar transmission line resonator of YBa/sub 2/Cu/sub 3/O/sub 7-x/ on LaAlO/sub 3/ |
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| Authors: | Valenzvela A.A. Daalmans B. Roas B. |
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| Affiliation: | Siemens AG Res. Lab., Munich, West Germany; |
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| Abstract: | Reports on quality factor measurements of a coplanar waveguide transmission line resonator patterned from a YBa/sub 2/Cu/sub 3/O/sub 7-x/ film on a LaAlO/sub 3/ substrate, resonating at 6.5 GHz. At 77 K the unloaded quality factor is 3850+or-180, that is about 43 times higher than that of an identical copper resonator at the same temperature and frequency. This result demonstrates the usefulness of LaAlO/sub 3/ as a substrate for high-temperature superconducting microwave applications.<> |
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