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Antiferromagnetism and charged vortices in high-Tc superconductors

Daniel Knapp·Catherine Kallin·Amit Ghosal·Sarah Mansour
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Abstract

The effect of the long-range Coulomb interaction on charge accumulation in antiferromagnetic vortices in high-Tc superconductors is studied within a Bogoliubov-de Gennes mean-field model of competing antiferromagnetic and d-wave superconducting orders. Antiferromagnetism is found to be associated with an accumulation of charge in the vortex core, even in the presence of the long-range Coulomb interaction. The manifestation of Pi-triplet pairing in the presence of coexisting dSC and AFM order, and the intriguing appearance of one-dimensional stripe-like ordering are discussed. The local density of states (LDOS) in the vortex core is calculated and is found to be in excellent qualitative agreement with experimental data.

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Daniel Knapp, Catherine Kallin, Amit Ghosal, Sarah Mansour. 2005-02-09. Antiferromagnetism and charged vortices in high-Tc superconductors. https://doi.org/10.1103/physrevb.71.064504

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