Magnetic quantization of electronic states in d-wave superconductors
N. B. Kopnin, V. M. Vinokur
DOI 10.1103/PhysRevB.62.9770 · Physical Review B
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Abstract
We derive a general quasiclassical approach for long-range magnetic-field quantization effects in superconductors. The method is applied to superclean d-wave superconductors in the mixed state for delocalized states with energies ε≫Δ0H/Hc2. We find that the energy spectrum consists of narrow energy bands whose centers are located at the Landau levels calculated in the absence of the vortex potential. We show that transitions between the states belonging to the different Landau levels can be observed experimentally due to resonances in the ac vortex friction.
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