Single impurity effects in the mixed state of d-wave superconductors

Jian-Xin Zhu; C. S. Ting; A. V. Balatsky

doi:10.1103/PhysRevB.66.064509

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Single impurity effects in the mixed state of d-wave superconductors

Jian-Xin Zhu, C. S. Ting, A. V. Balatsky

DOI 10.1103/PhysRevB.66.064509 · Physical Review B

T1

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Abstract

The effects of a single impurity in the mixed state of a d-wave superconductor is studied by solving the lattice Bogoliubov–de Gennes equations self-consistently. The mechanism for the vortex pinning by the impurity is carefully elucidated. It is shown that the impurity sitting at the core center is not repulsive to the vortex core states and the zero-energy resonant state induced by itself is still visible in the local quasiparticle spectrum. The calculated imaging shows a fourfold “star” shape of the local density of states whose orientation is energy dependent.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown