Anisotropic vortex structure inY1Ba2Cu3O7
| Autor: | F. Holtzberg, G. J. Dolan, T. R. Dinger, C. Feild |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
chemistry.chemical_classification
Physics Superconductivity High-temperature superconductivity Condensed matter physics General Physics and Astronomy Crystal structure law.invention Vortex chemistry law Condensed Matter::Superconductivity Lattice (order) Orthorhombic crystal system Anisotropy Inorganic compound |
| Zdroj: | Physical Review Letters. 62:2184-2187 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.62.2184 |
| Popis: | We report Bitter-pattern observations of the vortices for flux trapped in crystals of the orthorhombic high-${\mathrm{T}}_{\mathrm{c}}$ superconductor ${\mathrm{Y}}_{1}$${\mathrm{Ba}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$. For B\ensuremath{\parallel}c axis, the slight distortion of the vortex lattice yields a penetration-depth anisotropy ranging from 1.11 to 1.15 for different crystals. For B\ensuremath{\perp}c, the case of strong anisotropy, we observe chains of oval vortices. When they are not aligned by defects, the chains appear to undulate rather than adopt a crystalline habit. From the vortex spacing we deduce an anisotropy of 5.5\ifmmode\pm\else\textpm\fi{}1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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