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 2e2/h, decreases as expected with field-dependent gap, and collapses onto a simple scaling function in the dimensionless ratio of temperature and tunnel coupling.
@article{arxiv.1706.07033,
title = {Scaling of Majorana Zero-Bias Conductance Peaks},
author = {Fabrizio Nichele and Asbjorn C. C. Drachmann and Alexander M. Whiticar and Eoin C. T. O'Farrell and Henri J. Suominen and Antonio Fornieri and Tian Wang and Geoffrey C. Gardner and Candice Thomas and Anthony T. Hatke and Peter Krogstrup and Michael J. Manfra and Karsten Flensberg and Charles M. Marcus},
journal= {arXiv preprint arXiv:1706.07033},
year = {2017}
}