Magnetic field distribution in the vortex lattice of a type-II superconductor in the Ginzburg-Landau approach and experimental validation of theory by the μSR-method
| Autor: | V. P. Smilga, V.I. Fesenko, A. D. Sidorenko, V.N. Gorbunov |
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| Rok vydání: | 1993 |
| Předmět: |
Physics
Superconductivity High-temperature superconductivity Condensed matter physics Magnetic moment Isotropy Energy Engineering and Power Technology Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Magnetic field Exact solutions in general relativity law Condensed Matter::Superconductivity Electrical and Electronic Engineering Local field Type-II superconductor |
| Zdroj: | Physica C: Superconductivity. 211:343-354 |
| ISSN: | 0921-4534 |
| Popis: | The distribution of magnetic fields in the vortex lattices of type-II superconductors has been investigated. This has been done in the framework of Ginzburg-Landau (GL) theory for isotropic and anisotropic (HTSC) superconductors. Analytical and numerical results obtained show the way to verify experimentally the superconductivity theory and to determine the area of applicability of various GL theory approximations. It is shown that in some cases the system of GL equations for an anisotropic superconductor can be reduced to that of an isotropic one. The numerical solutions of GL equations were obtained. New approaches are suggested to approximate the exact solution in the whole range of magnetic fields. The exact solutions of GL equations are compared with the most frequently used approximations in the broad range of magnetic fields and κ parameter. The influence of nuclear magnetic moments upon the observable distributions of internal magnetic fields is considered. |
| Databáze: | OpenAIRE |
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