2017/06/30 by Fabrizio Nichele, Asbjorn C. C. Drachmann, Alexander M. Whiticar +11 · 1 citation
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.119.136803
published as Phys. Rev. Lett. 119, 136803 (2017) · Accepted in Physical Review Letters
arxiv created 2017/09/12 · arxiv updated 2017/09/29
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.