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Quasi-particle spectrum around a single vortex in superconductors - dx2-y(2)-wave case

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Maki,  K.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Kato, M., & Maki, K. (2002). Quasi-particle spectrum around a single vortex in superconductors - dx2-y(2)-wave case. Progress of Theoretical Physics, 107(5), 941-956. Retrieved from http://ptp.ipap.jp/cgi-bin/getarticle?magazine=PTP&volume=107&number=5&page=941-956.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-37A0-7
Abstract
Making use of the Bogoliubov-de Gennes equation for d-wave superconductors, we study the quasi-particle spectrum and the vortex core structure of a single vortex in quasi-2D d-wave superconductors for small p(F)xi(0), where p(F) is the Fermi momentum and xi(0) = VF/Delta(0) is the coherence length (h = 1). Unlike in previous analyses, the electron density conservation is strictly imposed on our self-consistent solution. The eigenstates are classified as bound states and extended states. The bound states play an important role in the Kramer-Pesch effect in d-wave superconductors. Further, they should be accessible through T-1 and the Knight shift in NMR.