Anodic oxidation of epitaxial superconductor-semiconductor hybrids

Autor: Henri J. Suominen, Alex R. Hamilton, Charles Marcus, Fabrizio Nichele, Alexander M. Whiticar, Michael J. Manfra, Asbjorn Drachmann, Candice Thomas, Tiantian Wang, Antonio Fornieri, Rosa E. Diaz, Sergei Gronin, Geoffrey C. Gardner

Publikováno v: Drachmann, A C C, Diaz, R E, Thomas, C, Suominen, H J, Whiticar, A M, Fornieri, A, Gronin, S, Wang, T, Gardner, G C, Hamilton, A R, Nichele, F, Manfra, M J & Marcus, C M 2021, ' Anodic oxidation of epitaxial superconductor-semiconductor hybrids ', Physical Review Materials, vol. 5, no. 1, 013805 . https://doi.org/10.1103/PhysRevMaterials.5.013805

We demonstrate a new fabrication process for hybrid semiconductor-superconductor heterostructures based on anodic oxidation (AO), allowing controlled thinning of epitaxial Al films. Structural and transport studies of oxidized epitaxial Al films grow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cc62921c310a4b8b713af1c5253a890
https://curis.ku.dk/ws/files/259510643/PhysRevMaterials.5.013805.pdf

Transport Studies of Epi-Al/InAs Two-Dimensional Electron Gas Systems for Required Building-Blocks in Topological Superconductor Networks

Autor: Chris Palmstrom, Anthony P. McFadden, Henri J. Suominen, Joon Sue Lee, Fabrizio Nichele, Morten Kjaergaard, Charles Marcus, Younghyun Kim, Hao Zhang, Borzoyeh Shojaei, Mihir Pendharkar

Publikováno v: Nano letters. 19(5)

One-dimensional (1D) electronic transport and induced superconductivity in semiconductor nanostructures are crucial ingredients to realize topological superconductivity. Our approach for topological superconductivity employs a two-dimensional electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::088672a297d8407dbb71f2ed29912967
https://pubmed.ncbi.nlm.nih.gov/30912948

Scaling of Majorana Zero-Bias Conductance Peaks

Autor: Antonio Fornieri, Alexander M. Whiticar, Karsten Flensberg, Eoin O'Farrell, Charles Marcus, Geoffrey C. Gardner, Michael J. Manfra, Peter Krogstrup, Anthony Hatke, Henri J. Suominen, Candice Thomas, Tian Wang, Asbjorn Drachmann, Fabrizio Nichele

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 semiconduct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8d6bcbeed177a48c4b38f9d78beb34f
http://arxiv.org/abs/1706.07033

Zero-Energy Modes from Coalescing Andreev States in a Two-Dimensional Semiconductor-Superconductor Hybrid Platform

Autor: Javad Shabani, Alex R. Hamilton, Henri J. Suominen, Charles Marcus, Morten Kjaergaard, Fabrizio Nichele, Chris Palmstrom

We investigate zero-bias conductance peaks that arise from coalescing subgap Andreev states, consistent with emerging Majorana zero modes, in hybrid semiconductor-superconductor wires defined in a two-dimensional InAs/Al heterostructure using top-dow

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f992493b7a28b46c9720729aeeb6500a

Decoupling Edge Versus Bulk Conductance in the Trivial Regime of anInAs/GaSbDouble Quantum Well Using Corbino Ring Geometry

Autor: Binh-Minh Nguyen, Henri J. Suominen, Fanming Qu, Charles Marcus, Fabrizio Nichele, Morten Kjaergaard, Ramsey Noah, Stevan Nadj-Perge, Andrey A. Kiselev, Michael J. Manfra, Arjan J. A. Beukman, Marko Sokolich, Leo P. Kouwenhoven, Wei Yi, Jasper van Veen, Folkert K. de Vries

Publikováno v: Physical Review Letters. 117

A Corbino ring geometry is utilized to analyze edge and bulk conductance of InAs/GaSb quantum well structures. We show that edge conductance exists in the trivial regime of this theoretically predicted topological system with a temperature-insensitiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75d52b8459002570a1bdc2e6c1f5a584
https://doi.org/10.1103/physrevlett.117.077701