Side-gate modulation of critical current in mesoscopic Josephson junction

✍ Scribed by Niels Asger Mortensen; Georg Bastian

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 255 KB
• Volume: 28
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.2000.0908

✦ Synopsis

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.