Optical measurement for thin films of Bi-Sr-Ca-Cu-O systems
✍ Scribed by K. Hirochi; K. Setsune; S. Hayashi; K. Mizuno; T. Matsushima; Y. Ichikawa; H. Adachi; K. Wasa
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 350 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0921-4526
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✦ Synopsis
The normal state optical properties of the Bi2Sr2Can-ICunOx systems have been measured using thin films with highly oriented c-axis normal to (100) MgO substrates. For the films defined by n=l, 2 and 3, a Drude like plasma reflection was recognized on the reflectivity spectra. With increasing n, the plasma reflection became clearer and a plasma edge shifted to the higher energy side.
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Angular dependence of the magnetoresistance and of the critical current up to 20 tesla in the bismuth 2212 phase shows remarkable anisotropic behavior. Samples are highly c-axis oriented thin films. The field dependence of the critical current is shown to be essentially dominated by the component of