✦ LIBER ✦
Determination of pinning energy U0 for melt textured YBCO in accord with collective pinning theory
✍ Scribed by D.X. Shen; A.M. Sun; C.F. Tian; H.Q. Bian; H.B. Zhu; Y.W. Li; T.J. Chen
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 177 KB
- Volume
- 432
- Category
- Article
- ISSN
- 0921-4534
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✦ Synopsis
In collective pinning theory, vortex pinning energy, U, is a key parameter in describing thermally activated flux motion, but it is a function of the critical current density J c , glassy exponent l and pinning energy U 0 , under the base of GriessenÕs and our groupÕs methods of obtaining J c and l, respectively. Determining U 0 is a troublesome problem. In this paper, we introduce a new way of determining pinning energy U 0 , thus, the complex problem of getting U has been solved successfully.