Observation of flux density distribution in disk-shaped YBa2Cu3Ox thin films
β Scribed by Y. Yokoyama; Y. Suzuki; Y. Hasumi; H. Obara; S. Yoshida
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 340 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
Thin films of YBazCuaO+x are deposited on MgO substrates via dc magnetron sputter technic. The thicknesses varry between 1Onm and 500nm. The films are patterned by dry etching method. Narrow stripes with widths down to 1 urn are obtained without serious degradation, e.g. Tc,ocf > 85K and Tc < 1.6K.
The superconducting transition and critical current density were studied for epitaxial YBa2Cu307\_x thin films as a function of temperature, magnetic field and electric voltage gradient. A linear section of the curve of the logarithm of apparent voltage versus transport current density, In(E)-J, was