» Articles » PMID: 29341695

Scaling of Majorana Zero-Bias Conductance Peaks

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.

Citing Articles

Interferometric single-shot parity measurement in InAs-Al hybrid devices.

Aghaee M, Alcaraz Ramirez A, Alam Z, Ali R, Andrzejczuk M, Antipov A Nature. 2025; 638(8051):651-655.

PMID: 39972225 PMC: 11839464. DOI: 10.1038/s41586-024-08445-2.


Optimization of In-Situ Growth of Superconducting Al/InAs Hybrid Systems on GaAs for the Development of Quantum Electronic Circuits.

Kirti M, Suto M, Tovari E, Makk P, Prok T, Csonka S Materials (Basel). 2025; 18(2).

PMID: 39859856 PMC: 11766944. DOI: 10.3390/ma18020385.


Dirac-fermion-assisted interfacial superconductivity in epitaxial topological-insulator/iron-chalcogenide heterostructures.

Yi H, Hu L, Zhao Y, Zhou L, Yan Z, Zhang R Nat Commun. 2023; 14(1):7119.

PMID: 37932274 PMC: 10628154. DOI: 10.1038/s41467-023-42902-2.


Zeeman- and Orbital-Driven Phase Shifts in Planar Josephson Junctions.

Haxell D, Coraiola M, Sabonis D, Hinderling M, Ten Kate S, Cheah E ACS Nano. 2023; 17(18):18139-18147.

PMID: 37694539 PMC: 10540266. DOI: 10.1021/acsnano.3c04957.


Topological Superconductors from a Materials Perspective.

Mandal M, Drucker N, Siriviboon P, Nguyen T, Boonkird A, Lamichhane T Chem Mater. 2023; 35(16):6184-6200.

PMID: 37637011 PMC: 10448998. DOI: 10.1021/acs.chemmater.3c00713.