Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Schueffelgen, Peter"'
Autor:
Zimmermann, Erik, Jalil, Abdur Rehman, Schleenvoigt, Michael, Karthein, Jan, Frohn, Benedikt, Behner, Gerrit, Lentz, Florian, Trellenkamp, Stefan, Neumann, Elmar, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas
Nanoscale superconducting quantum interference devices (SQUIDs) are fabricated in-situ from a single Bi$_{0.26}$Sb$_{1.74}$Te$_{3}$ nanoribbon that is defined using selective-area growth and contacted with superconducting Nb electrodes via a shadow m
Externí odkaz:
http://arxiv.org/abs/2403.13689
Autor:
Janßen, Kevin, Rüßmann, Philipp, Liberda, Sergej, Schleenvoigt, Michael, Hou, Xiao, Jalil, Abdur Rehman, Lentz, Florian, Trellenkamp, Stefan, Bennemann, Benjamin, Zimmermann, Erik, Mussler, Gregor, Schüffelgen, Peter, Schneider, Claus-Michael, Blügel, Stefan, Grützmacher, Detlev, Plucinski, Lukasz, Schäpers, Thomas
With increasing attention in Majorana physics for possible quantum bit applications, a large interest has been developed to understand the properties of the interface between a $s$-type superconductor and a topological insulator. Up to this point the
Externí odkaz:
http://arxiv.org/abs/2312.07325
Autor:
Behner, Gerrit, Moors, Kristof, Zhang, Yong, Schleenvoigt, Michael, Rupp, Alina, Zimmermann, Erik, Jalil, Abdur Rehman, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas
Publikováno v:
Phys. Rev. B 109, 155429 (2024)
We present low-temperature magnetoconductance measurements on Bi$_{1.5}$Sb$_{0.5}$Te$_{1.8}$Se$_{1.2}$ kinks with ribbon-shaped legs. The conductance displays a clear dependence on the in-plane magnetic field orientation. The conductance modulation i
Externí odkaz:
http://arxiv.org/abs/2310.06924
Autor:
Zimmermann, Erik, Teller, Justus, Schleenvoigt, Michael, Behner, Gerrit, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas
We present the current-induced switching of the internal magnetization direction in a magnetic topological insulator/topological insulator heterostructure in the quantum anomalous Hall regime. The switching process is based on the bias current depend
Externí odkaz:
http://arxiv.org/abs/2308.07657
Autor:
Zimmermann, Erik, Schleenvoigt, Michael, Rupp, Alina, Behner, Gerrit, Karthein, Jan, Teller, Justus, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas
We present a symmetrization routine that optimizes and eases the analysis of data featuring the anomalous Hall effect. This technique can be transferred to any hysteresis with (point-)symmetric behaviour. The implementation of the method is demonstra
Externí odkaz:
http://arxiv.org/abs/2307.16450
Aharonov-Bohm interference and phase-coherent surface-state transport in topological insulator rings
Autor:
Behner, Gerrit, Jalil, Abdur Rehman, Heffels, Dennis, Kölzer, Jonas, Moors, Kristof, Mertens, Jonas, Zimmermann, Erik, Mussler, Gregor, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas
We present low-temperature magnetotransport measurements on selectively-grown Sb$_2$Te$_3$-based topological insulator ring structures. These topological insulator ring geometries display clear Aharonov-Bohm oscillations in the conductance originatin
Externí odkaz:
http://arxiv.org/abs/2303.01750
Autor:
Burke, Declan, Heffels, Dennis, Moors, Kristof, Schüffelgen, Peter, Grützmacher, Detlev, Connolly, Malcolm R.
Publikováno v:
Phys. Rev. B 109, 045138 (2024)
Magnetic topological insulators in the quantum anomalous Hall regime host ballistic chiral edge channels. When proximitized by an $s$-wave superconductor, these edge states offer the potential for realizing topological superconductivity and Majorana
Externí odkaz:
http://arxiv.org/abs/2302.10982
Autor:
Willsch, Dennis, Rieger, Dennis, Winkel, Patrick, Willsch, Madita, Dickel, Christian, Krause, Jonas, Ando, Yoichi, Lescanne, Raphaël, Leghtas, Zaki, Bronn, Nicholas T., Deb, Pratiti, Lanes, Olivia, Minev, Zlatko K., Dennig, Benedikt, Geisert, Simon, Günzler, Simon, Ihssen, Sören, Paluch, Patrick, Reisinger, Thomas, Hanna, Roudy, Bae, Jin Hee, Schüffelgen, Peter, Grützmacher, Detlev, Buimaga-Iarinca, Luiza, Morari, Cristian, Wernsdorfer, Wolfgang, DiVincenzo, David P., Michielsen, Kristel, Catelani, Gianluigi, Pop, Ioan M.
Publikováno v:
Nat. Phys. 20, 815 (2024)
Approaches to developing large-scale superconducting quantum processors must cope with the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices. State-of-the-art superconducting qubits employ aluminum oxide (AlO$_x$) tun
Externí odkaz:
http://arxiv.org/abs/2302.09192
Autor:
Rosenbach, Daniel, Jalil, Abdur R., Schmitt, Tobias W., Bennemann, Benjamin, Mussler, Gregor, Schüffelgen, Peter, Grützmacher, Detlev, Schäpers, Thomas
In this letter we report on the electrical transport properties of Bi$_4$Te$_3$ in a Josephson junction geometry using superconducting Al electrodes with a Ti interdiffusion barrier. Bi$_4$Te$_3$ is proposed to be a dual topological insulator, for wh
Externí odkaz:
http://arxiv.org/abs/2301.03968
Autor:
Kölzer, Jonas, Jalil, Abdur Rehman, Rosenbach, Daniel, Arndt, Lisa, Mussler, Gregor, Schüffelgen, Peter, Grützmacher, Detlev, Lüth, Hans, Schäpers, Thomas
In an in-situ prepared three-terminal Josephson junction based on the topological insulator Bi$_4$Te$_3$ and the superconductor Nb the transport properties are studied. The differential resistance maps as a function of two bias currents reveal extend
Externí odkaz:
http://arxiv.org/abs/2301.01115