Transcription of Lecture Notes on Superconductivity (A Work in Progress)
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Lecture Notes on Superconductivity (A Work in Progress). Daniel Arovas Congjun Wu Department of Physics University of California, San Diego June 23, 2019. Contents 0 References 1. General Texts .. 1. Organic Superconductors .. 2. Unconventional Superconductors .. 2. Superconducting Devices .. 2. 1 Phenomenological Theories of Superconductivity 3. Basic Phenomenology of Superconductors .. 3. Thermodynamics of Superconductors .. 5. London Theory .. 8. Ginzburg-Landau Theory .. 11. Landau theory for superconductors .. 12. Ginzburg-Landau Theory .. 13. Equations of motion .. 13. Critical current .. 14. Ginzburg criterion .. 15. Domain wall solution .. 17. Scaled Ginzburg-Landau equations .. 18. Applications of Ginzburg-Landau Theory .. 19. Domain wall energy .. 19. Thin type-I films : critical field strength .. 21. Critical current of a wire .. 24. Magnetic properties of type-II superconductors .. 26. i ii CONTENTS. Lower critical field .. 27. Abrikosov vortex lattice .. 28.
• Vanishing electrical resistance: The DC electrical resistance at zero magnetic field vanishes in the super-conducting state. This is established in some materials to better than one part in 1015 of the normal state resistance. Abovethe criticaltemperatureTc, theDC resistivity atH= 0is finite. The ACresistivityremains
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