WTe$_2$: Candidate for topological superconductivity

Endres, Martin Alexander. WTe$_2$: Candidate for topological superconductivity. 2022, Doctoral Thesis, University of Basel, Faculty of Science.


Official URL: https://edoc.unibas.ch/91549/

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The focus of this thesis lies on the layered transition metal-dichalcogenide tungsten ditelluride WTe$_2$ and its potential role in engineering a topological superconductor. The material is proposed to be a higher-order topological insulator hosting gapless states along its crystal hinges. Surprisingly, we find that the material turns superconducting when it is brought in contact to palladium, combining topology and superconductivity in a single, promising material platform. We use the effect to fabricate highly transparent Josephson junctions out of this material system, and we study the devices in transport measurements at cryogenic temperatures.
Advisors:Schönenberger, Christian and Maletinsky, Patrick M. and Ando , Yoichi and Schäpers, Thomas
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentalphysik Nanoelektronik (Schönenberger)
UniBasel Contributors:Schönenberger, Christian and Maletinsky, Patrick M.
Item Type:Thesis
Thesis Subtype:Doctoral Thesis
Thesis no:14901
Thesis status:Complete
Number of Pages:v, 128
Identification Number:
  • urn: urn:nbn:ch:bel-bau-diss149013
edoc DOI:
Last Modified:01 Aug 2023 01:30
Deposited On:03 Jan 2023 15:29

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