Critical Current 0-$π$ Transition in Designed Josephson Quantum Dot Junctions - Condensed Matter > SuperconductivityReportar como inadecuado




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Abstract: We report on quantum dot based Josephson junctions designed specifically formeasuring the supercurrent. From high-accuracy fitting of the current-voltagecharacteristics we determine the full magnitude of the supercurrent criticalcurrent. Strong gate modulation of the critical current is observed throughseveral consecutive Coulomb blockade oscillations. The critical current crosseszero close to, but not at, resonance due to the so-called 0-$\pi$ transition inagreement with a simple theoretical model.



Autor: H. Ingerslev Jørgensen, T. Novotný, K. Grove-Rasmussen, K. Flensberg, P. E. Lindelof

Fuente: https://arxiv.org/







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