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arXiv · 1706.07033

Scaling of Majorana Zero-Bias Conductance Peaks

Fabrizio Nichele·Asbjorn C. C. Drachmann·Alexander M. Whiticar·Eoin C. T. O'Farrell·Henri J. Suominen·Antonio Fornieri·Tian Wang·Geoffrey C. Gardner·Candice Thomas·Anthony T. Hatke·Peter Krogstrup·Michael J. Manfra·Karsten Flensberg·Charles M. Marcus
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Abstract

We report an experimental study of the scaling of zero-bias conductance peaks compatible with Majorana zero modes as a function of magnetic field, tunnel coupling, and temperature in one-dimensional structures fabricated from an epitaxial semiconductor-superconductor heterostructure. Results are consistent with theory, including a peak conductance that is proportional to tunnel coupling, saturates at $2e^2/h$, decreases as expected with field-dependent gap, and collapses onto a simple scaling function in the dimensionless ratio of temperature and tunnel coupling.

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Fabrizio Nichele, Asbjorn C. C. Drachmann, Alexander M. Whiticar, Eoin C. T. O'Farrell, Henri J. Suominen, Antonio Fornieri, Tian Wang, Geoffrey C. Gardner, Candice Thomas, Anthony T. Hatke, Peter Krogstrup, Michael J. Manfra, Karsten Flensberg, Charles M. Marcus. 2017-09-12. Scaling of Majorana Zero-Bias Conductance Peaks. https://doi.org/10.1103/physrevlett.119.136803

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