Critical Field Anisotropy of a Single Crystal GdBa2Cu3Ox and HoBa2Cu3Ox
- 1 November 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (11A) , L1850-1852
- https://doi.org/10.1143/jjap.26.l1850
Abstract
A study of anisotropic critical field has been carried out on single crystal samples of GdBa2Cu3O x and HoBa2Cu3O x . The angular dependence of the upper critical field can be fitted to the anisotropic Ginzburg-Landau model. The anisotropy ratio H c2 ⊥/H c2 // depends somewhat on the definition of H c2 and is also temperature dependent, but it generally falls between 3 and 7. The superconducting properties of GdBa2Cu3O x and HoBa2Cu3O x are almost identical with that of YBa2Cu3O x which we reported earlier, except for small differences in T c.Keywords
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