- Autor(in)
- Sponsor(in)
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Deutschland. Bundesministerium für Forschung und Technologie
- Referenz
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1 M. Wilhelm, O. Eibl, Solid State Commun. 70 (1988) 137
2 H. Nobumasa, T. Arima, K. Shimizu, Y. Otsuka, Y. Murata, T. Kawai, Jpn. J. Appl. Phys. 28 (1989) L57
3 N. Kijima, H. Endo, J. Tsuchiya, A. Sumiyama, M. Mizuno, Y. Oguri, Jpn. J. Appl. Phys. 28 (1989) L787
4 A. Sequeira, J. V. Yakhmi, R. M. Iyer, H. Rajagopal, P. V. P. S. S. Sastry, Physica C 167 (1990) 291
5 G. Miehe, T. Vogt, H. Fuess, H. Wilhelm, Physica C171 (1990) 229
6 O. Eibl, Physica C175 (1991) 419
7 T. Rentschler, Dissertation, Tübingen 1992
8 S. Lösch, M. Schlichenmaier, S. Kemmler-Sack, C. Schöll, S. Dottinger, W. Forkel, D. Kölle, R. Gross, R. P. Huebener, J. Less-Common Met. 159 (1990) 261
9 S. Elschner, S. Gauss, Supercond. Sci. Technol. 5 (1992) 300
- Seitenbereich
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0071 - 0076
- Schlagwort(e)
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<KWD>Superconductivity
Bi cuprates
Magnetic properties
- Zusammenfsg.
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From a study of the influence of the Ca: Pb ratio on the superconducting properties of Bibased ceramics of 2223 type it follows that as a second parameter the employed gas atmosphere must be taken into consideration. In case of air preparation good intragrain and intergrain properties are obtained for Ca rich samples (e.g. Bi<sub>1.8</sub>Pb<sub>0.2</sub>Sr<sub>1.9</sub>Ca<sub>2.1</sub> Cu<sub>3</sub>O<sub>z</sub>); whereas for Pb rich materials (e.g. Bi<sub>1.7</sub>Pb<sub>0.5</sub>Sr<sub>1.9</sub>Ca<sub>1.9</sub> Cu<sub>3</sub>O<sub>z</sub>) improved conditions are encountered by employment of an Ar/O<sub>2</sub> (8%) atmosphere during synthesis. Independently, the transition temperature is situated near 108 K.
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- Forschungsartikel