Josephson Effect and Charge Distribution in Thin Bi2Te3 Topological Insulators
Source abstract
Abstract
Abstract Thin layers of topological insulator materials are quasi‐2D systems featuring a complex interplay between quantum confinement and topological band structure. To understand the role of the spatial distribution of carriers in electrical transport, the Josephson effect, magnetotransport, and weak anti‐localization are studied in bottom‐gated thin Bi2Te3 topological insulator films. The experimental carrier densities are compared to a model based on the solutions of the self‐consistent Schrödinger–Poisson equations and they are in excellent agreement. The modeling allows for a quantitative interpretation of the weak antilocalization correction to the conduction and of the critical current of Josephson junctions with weak links made from such films without any ad hoc assumptions.
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Research context
OpenAlex topics: Topological Materials and Phenomena · Graphene research and applications · Quantum many-body systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Science and Technology and MESA+ Institute for Nanotechnology University of Twente 7500 AE Enschede The Netherlands
Physikalisches Institut EP3 University of Würzburg Am Hubland 97070 Würzburg Germany
Max Planck Institute for Solid State Research 70569 Stuttgart Germany
Department of Physics University of Johannesburg P.O. Box 524 Auckland Park 2006 Johannesburg South Africa
Graduate school of Science and Engineering Saitama University 255 Shimo‐Okubo, Sakura‐ku Saitama 338‐8570 Japan
Funding
European Research Council
References (41)
Show source-provided references
1. Liang F. · Phys. Rev. B · 2005 · 4 · 045302
2. 10.1103/PhysRevLett.100.09640710.1103/PhysRevLett.100.096407 ↗
3. 10.1103/PhysRevLett.103.10700210.1103/PhysRevLett.103.107002 ↗
4. 10.1103/PhysRevB.83.18452010.1103/PhysRevB.83.184520 ↗
5. 10.1103/RevModPhys.80.108310.1103/RevModPhys.80.1083 ↗
6. 10.1038/nature0891510.1038/nature08915 ↗
7. 10.1038/ncomms1030310.1038/ncomms10303 ↗
8. 10.1038/nnano.2016.15910.1038/nnano.2016.159 ↗
9. Deacon R. S. · Phys. Rev. X · 2017 · 7 · 021011
10. P.Schüffelgen D.Rosenbach C.Li T.Schmitt M.Schleenvoigt A. R.Jalil J.Kölzer M.Wang B.Bennemann U.Parlak L.Kibkalo M.Luysberg G.Mussler A. A.Golubov A.Brinkman T.Schäpers D.Grützmacher arXiv:1711.01665 [cond‐mat.supr‐con] 2017.
11. 10.1103/PhysRevB.93.03530710.1103/PhysRevB.93.035307 ↗
12. 10.1109/TASC.2016.263211210.1109/TASC.2016.2632112 ↗
13. 10.1038/s41565-019-0506-y10.1038/s41565-019-0506-y ↗
14. 10.1016/j.sse.2019.03.00310.1016/j.sse.2019.03.003 ↗
15. 10.1038/s41467-017-02069-z10.1038/s41467-017-02069-z ↗
16. 10.1016/j.ssc.2014.10.02110.1016/j.ssc.2014.10.021 ↗
17. 10.1103/PhysRevMaterials.2.04420410.1103/PhysRevMaterials.2.044204 ↗
18. 10.1073/pnas.141059111110.1073/pnas.1410591111 ↗
19. 10.1038/ncomms216210.1038/ncomms2162 ↗
20. 10.1073/pnas.111555510910.1073/pnas.1115555109 ↗
21. 10.1103/PhysRevLett.107.09680210.1103/PhysRevLett.107.096802 ↗
22. 10.1103/PhysRevB.81.04130710.1103/PhysRevB.81.041307 ↗
23. 10.1103/PhysRevB.87.15512610.1103/PhysRevB.87.155126 ↗
24. 10.1007/978-3-662-56322-9_710.1007/978-3-662-56322-9_7 ↗
25. 10.1103/PhysRevB.92.03540510.1103/PhysRevB.92.035405 ↗
26. 10.1103/PhysRevLett.11.8010.1103/PhysRevLett.11.80 ↗
27. M.Goryachev L.Zhao Z.Zhao W. G.Farr J.Krupka M. E.Tobar arXiv:1508.07550 [cond‐mat.mtrl‐sci] 2015.
28. 10.1002/aelm.20160015710.1002/aelm.201600157 ↗
29. 10.1103/PhysRevB.92.21451310.1103/PhysRevB.92.214513 ↗
30. 10.1063/1.216286310.1063/1.2162863 ↗
31. 10.1109/TNANO.2011.216616410.1109/TNANO.2011.2166164 ↗
32. 10.1143/PTP.63.70710.1143/PTP.63.707 ↗
33. Maekawa S. · Physica · 1981 · 107 · 123
34. 10.1103/PhysRevB.86.03542210.1103/PhysRevB.86.035422 ↗
35. In the present context the spin scattering time characterizes dephasing by scattering with ordinary impurities when the spin‐orbit interaction is strong not spin‐flip scattering from magnetic impurities. Valley scattering refers to scattering between the ‘top' and ‘bottom' sectors of the Hamiltonian for (massive) Dirac fermions.
36. 10.1103/PhysRevB.92.04540810.1103/PhysRevB.92.045408 ↗
37. 10.1103/PhysRevB.63.06450210.1103/PhysRevB.63.064502 ↗
38. 10.1103/PhysRevLett.87.20680110.1103/PhysRevLett.87.206801 ↗
39. 10.1007/BF0239963010.1007/BF02399630 ↗
40. 10.1103/PhysRevB.94.11540510.1103/PhysRevB.94.115405 ↗
41. 10.1021/acs.nanolett.6b0073810.1021/acs.nanolett.6b00738 ↗