Výsledky vyhledávání - "Peter Schuffelgen"

Akademický článek

Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator

Autor: Erik Zimmermann, Michael Schleenvoigt, Alina Rupp, Gerrit Behner, Jan Karthein, Justus Teller, Peter Schüffelgen, Hans Lüth, Detlev Grützmacher, Thomas Schäpers

Publikováno v: JPhys Materials, Vol 7, Iss 1, p 015015 (2024)

We present a symmetrization routine that optimizes and eases the analysis of imperfect, experimental data featuring the anomalous Hall hysteresis. This technique can be transferred to any hysteresis with (point-)symmetric behavior. The implementation

Externí odkaz: https://doaj.org/article/71ef9add5cc54a1e842c8336b06ca69f

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Akademický článek

In-plane magnetic field-driven symmetry breaking in topological insulator-based three-terminal junctions

Autor: Jonas Kölzer, Kristof Moors, Abdur Rehman Jalil, Erik Zimmermann, Daniel Rosenbach, Lidia Kibkalo, Peter Schüffelgen, Gregor Mussler, Detlev Grützmacher, Thomas L. Schmidt, Hans Lüth, Thomas Schäpers

Publikováno v: Communications Materials, Vol 2, Iss 1, Pp 1-7 (2021)

Topological surface states of three-dimensional topological insulators exhibit distinct magnetotransport properties. Here, a steering effect is demonstrated for three-terminal junctions, which is driven by an in-plane magnetic field and makes the jun

Externí odkaz: https://doaj.org/article/9e7eb06996aa4439ad5a154099d3d144

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Akademický článek

Phase-Selective Epitaxy of Trigonal and Orthorhombic Bismuth Thin Films on Si (111)

Autor: Abdur Rehman Jalil, Xiao Hou, Peter Schüffelgen, Jin Hee Bae, Elmar Neumann, Gregor Mussler, Lukasz Plucinski, Detlev Grützmacher

Publikováno v: Nanomaterials, Vol 13, Iss 14, p 2143 (2023)

Over the past three decades, the growth of Bi thin films has been extensively explored due to their potential applications in various fields such as thermoelectrics, ferroelectrics, and recently for topological and neuromorphic applications, too. Des

Externí odkaz: https://doaj.org/article/772ca79b22b74768b4b71c10e94a0191

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Akademický článek

Robust and Fragile Majorana Bound States in Proximitized Topological Insulator Nanoribbons

Autor: Dennis Heffels, Declan Burke, Malcolm R. Connolly, Peter Schüffelgen, Detlev Grützmacher, Kristof Moors

Publikováno v: Nanomaterials, Vol 13, Iss 4, p 723 (2023)

Topological insulator (TI) nanoribbons with proximity-induced superconductivity are a promising platform for Majorana bound states (MBSs). In this work, we consider a detailed modeling approach for a TI nanoribbon in contact with a superconductor via

Externí odkaz: https://doaj.org/article/2596c75e58e141cc9fc3196bdcdb56ba

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Akademický článek

Supercurrent in Bi4Te3 Topological Material-Based Three-Terminal Junctions

Autor: Jonas Kölzer, Abdur Rehman Jalil, Daniel Rosenbach, Lisa Arndt, Gregor Mussler, Peter Schüffelgen, Detlev Grützmacher, Hans Lüth, Thomas Schäpers

Publikováno v: Nanomaterials, Vol 13, Iss 2, p 293 (2023)

In this paper, in an in situ prepared three-terminal Josephson junction based on the topological insulator Bi4Te3 and the superconductor Nb the transport properties are studied. The differential resistance maps as a function of two bias currents reve

Externí odkaz: https://doaj.org/article/1905c91459174fcb9615ece46e870a39

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Akademický článek

Selective Area Epitaxy of Quasi-1-Dimensional Topological Nanostructures and Networks

Autor: Abdur Rehman Jalil, Peter Schüffelgen, Helen Valencia, Michael Schleenvoigt, Christoph Ringkamp, Gregor Mussler, Martina Luysberg, Joachim Mayer, Detlev Grützmacher

Publikováno v: Nanomaterials, Vol 13, Iss 2, p 354 (2023)

Quasi-one-dimensional (1D) topological insulators hold the potential of forming the basis of novel devices in spintronics and quantum computing. While exposure to ambient conditions and conventional fabrication processes are an obstacle to their tech

Externí odkaz: https://doaj.org/article/962767c3dbfd4b7089ced720808bde2c

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Akademický článek

Electrical resistance of individual defects at a topological insulator surface

Autor: Felix Lüpke, Markus Eschbach, Tristan Heider, Martin Lanius, Peter Schüffelgen, Daniel Rosenbach, Nils von den Driesch, Vasily Cherepanov, Gregor Mussler, Lukasz Plucinski, Detlev Grützmacher, Claus M. Schneider, Bert Voigtländer

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

Exploiting topological insulator surface states in electronic devices requires an understanding of the factors that affect transport. Here, the authors use scanning tunnelling potentiometry to determine the contributions of different kinds of surface

Externí odkaz: https://doaj.org/article/efe40fa904f147b3a819951b62fb0883

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Akademický článek

Bi1Te1 is a dual topological insulator

Autor: Markus Eschbach, Martin Lanius, Chengwang Niu, Ewa Młyńczak, Pika Gospodarič, Jens Kellner, Peter Schüffelgen, Mathias Gehlmann, Sven Döring, Elmar Neumann, Martina Luysberg, Gregor Mussler, Lukasz Plucinski, Markus Morgenstern, Detlev Grützmacher, Gustav Bihlmayer, Stefan Blügel, Claus M. Schneider

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)

Coexistence of a topological insulator phase and a topological crystalline insulator phase helps to maintain topological properties under a controlled symmetry breaking perturbation. Here, Eschbacket al. report a superlattice of Bi and Bi2Te3to be su

Externí odkaz: https://doaj.org/article/39ed1759900149d9b90882de2509cd31

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Akademický článek

Josephson Supercurrent through the Topological Surface States of Strained Bulk HgTe

Autor: Jeroen B. Oostinga, Luis Maier, Peter Schüffelgen, Daniel Knott, Christopher Ames, Christoph Brüne, Grigory Tkachov, Hartmut Buhmann, Laurens W. Molenkamp

Publikováno v: Physical Review X, Vol 3, Iss 2, p 021007 (2013)

Strained bulk HgTe is a three-dimensional topological insulator, whose surface electrons have a high mobility (∼30 000 cm^{2}/Vs), while its bulk is effectively free of mobile charge carriers. These properties enable a study of transport through it

Externí odkaz: https://doaj.org/article/ea37857ec7e54378b0f9f40b164bb628

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