Side-gate modulation of critical current in mesoscopic Josephson junction

Details Side-gate modulation of critical current in mesoscopic Josephson junction Side-gate modulation of critical current in mesoscopic Josephson junction

2000-05-24

arxiv.org/abs/cond-mat/0005404v2

Superlattice Microstr. 28, 231 (2000).

Physics

Condensed Matter

Superconductivity

9 pages including 4 figures. Reference to cond-mat/0005435 added

Scientific paper

10.1006/spmi.2000.0908

We study the normal state conductance and the Josephson current in a superconductor-2DEG-superconductor structure where the size/shape of the 2DEG-region can be modified by an additional side-gate electrode. The considered transport properties follow from the retarded Green function which we compute by employing a tight-binding-like representation of the Hamiltonian in the 2DEG region. Our model studies offer a qualitative demonstration of the recently observed effects caused by side-gate modulation.

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