Density of states "width parity" effect in d-wave superconducting quantum wires

Details Density of states "width parity" effect in d-wave superconducting quantum wires Density of states "width parity" effect in d-wave superconducting quantum wires

2000-10-31

arxiv.org/abs/cond-mat/0010489v2

Phys. Rev. B 64, 054512 (2001)

Physics

Condensed Matter

Superconductivity

7 pages, 8 figures, new figures and extended discussion

Scientific paper

10.1103/PhysRevB.64.054512

We calculate the density of states (DOS) in a clean mesoscopic d-wave superconducting quantum wire, i.e. a sample of infinite length but finite width $N$. For open boundary conditions, the DOS at zero energy is found to be zero if $N$ is even, and nonzero if $N$ is odd. At finite chemical potential, all chains are gapped but the qualtitative differences between even and odd $N$ remain.

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