Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Th. Schäpers"'
Publikováno v:
Journal of Experimental and Theoretical Physics. 134:95-102
Publikováno v:
New Journal of Physics, Vol 19, Iss 10, p 103012 (2017)
The spin splitting of conduction band electrons in inversion-asymmetric InGaAs/InP quantum wells (QWs) is studied by Shubnikov-de Haas measurements combining the analysis of beating patterns and coincidence measurements in doubly tilted magnetic fiel
Externí odkaz:
https://doaj.org/article/6d6e597e0de54881a3c8ff7abafe9699
Autor:
Koji Ishibashi, Pujitha Perla, P. Liebisch, Mihail Ion Lepsa, Steffen Schlör, Detlev Grützmacher, Benjamin Bennemann, Th. Schäpers, Russell S. Deacon, Patrick Zellekens, Martin Weides
Publikováno v:
2019 Compound Semiconductor Week (CSW).
The transport properties of mesoscopic InAs nanowire and InAs/Al core/shell nanowire Josephson junctions are investigated. By using a normal conducting shunt resistor parallel to the junction, it is possible to extract the real supercurrent of the de
Publikováno v:
Physical review / B 99(8), 085437 (2019). doi:10.1103/PhysRevB.99.085437
The contribution of bulk inversion asymmetry to the total spin-orbit coupling is commonly neglected for group III-V nanowires grown in the generic [111] direction. We have solved the complete Hamiltonian of the circular nanowire accounting for bulk i
Publikováno v:
Nano Letters. 16:3116-3123
One-dimensional ballistic transport is demonstrated for a high-mobility InAs nanowire device. Unlike conventional quantum point contacts (QPCs) created in a two-dimensional electron gas, the nanowire QPCs represent one-dimensional constrictions forme
Publikováno v:
JETP Letters. 101:628-632
We investigate the correlations of the mutual positions of the nodes of charge density waves in side-by-side placed InAs nanowires in presence of a conductive atomic force microscope tip served as a mobile gate at helium temperatures. Scanning gate m
Autor:
St. Trellenkamp, Sebastian Heedt, Jürgen Schubert, François Crépin, Th. Schäpers, N. Traverso Ziani, Bjoern Trauzettel, Werner Prost, Detlev Grützmacher
Spin-momentum locking in a semiconductor device with strong spin-orbit coupling (SOC) is a fundamental goal of nanoscale spintronics and an important prerequisite for the formation of Majorana bound states. Such a helical state is predicted in one-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83a5a5afc7e230c32a31ed2b0fed7ded
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85015644979
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85015644979
Autor:
T. Merzenich, Christian Weyrich, Gregor Mussler, Th. Schäpers, Detlev Grützmacher, J. Kampmeier, Jürgen Schubert, I. E. Batov
Publikováno v:
Applied physics letters 110(9), 092104-(2017). doi:10.1063/1.4977848
We report on the Shubnikov–de Haas oscillations in the longitudinal resistance of thin films of three-dimensional topological insulator Sb2Te3 grown by means of molecular beam epitaxy. The oscillations persist up to the temperatures of 30 K, and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63e2b3c3f19221b70b2e2442191a48b
https://juser.fz-juelich.de/record/828028
https://juser.fz-juelich.de/record/828028
Autor:
Th. Schäpers, I. E. Batov, K. Sladek, Detlev Grützmacher, Hilde Hardtdegen, H. Y. Günel, G. Panaitov, N. Borgwardt
Publikováno v:
Nano Letters. 14:4977-4981
We report on the fabrication and characterization of symmetric nanowire-based Josephson junctions, that is, Al- and Nb-based junctions, and asymmetric junctions employing superconducting Al and Nb. In the symmetric junctions, a clear and pronounced J
Publikováno v:
Journal of Experimental and Theoretical Physics. 116:138-144
We performed measurements at helium temperatures of the electronic transport in the linear regime in an InAs quantum wire in the presence of a charged tip of an atomic force microscope (AFM) at low electron concentration. We show that at certain conc