Polycrystalline Bi-2212 or Bi-2223 systems and single crystals of the Bi-2212 system were investigated at several temperatures by means of the break-junction and pointcontact tunneling techniques, respectively. The measured averaged gap values are 2Ll=65Β±4 meV in the Bi-2223 and 2Ll=45Β±5 meV in the
Critical Josephson-fields and Hc1 of ceramic Bi2Sr2Ca2Cu3O10 and their relation to the granular structure
β Scribed by B. Schulz; B. Schliepe; W. Wisny; K. Baberschke
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 418 KB
- Volume
- 80
- Category
- Article
- ISSN
- 0038-1098
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π SIMILAR VOLUMES
A fast sinterlng procedure at 850-885Β°C in alr and quenching to room and LN 2 temperatures have been applied-for to prepare bulk samples of (Btl\_xPbx)2Sr2Ca2Cu3010+ q with relatively high vol~ fraction of the 2223-phase and zero-resistance polnt up to 107-109 K. The "weak links" prod em and the low
We have measured the critical current density parallel (jc) and normal (j~") to the plane of monofilamentary (Bi,Pb)2Sr2Ca2Cu3Olo silver-sheathed tapes prepared on the laboratory scale (l < 10 m) by the powder-in-tube technique with rolling as the only tape-forming process. For the range of critical