We have performed four probe transport measurements of the critical current in bulk samples of the high-Tc superconductors YBa2Cu307\_~ and DyBa2Cu3074. We found that over a range of temperatures the critical current varies linearly with (T c-T). This result indicates that these ceramics behave as a
✦ LIBER ✦
Effect of adjacent insulating oxide layers on superconductivity of one unit cell thick YBa2Cu3O7−δ layers in PrBa2Cu3O7−δ/YBa2Cu3O7−δ/insulating oxide trilayers
✍ Scribed by Yoshichika Bando; Takahito Terashima; Ken-ichi Shimura; Yoshihiro Daitoh; Yoshihiko Yano
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 478 KB
- Volume
- 150
- Category
- Article
- ISSN
- 0022-0248
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## Magnetization measurements of the intragranular pinning force in polycrystalline YBa2Cu307\_ ~ and YRa2(CUl\_xMx)307\_~, where M = Fe,Ni, address two major questions of flux pinning: 1, what are the dominant pinning sites; and 2, what is the relevant pinning mechanism in these materials. It is