Search Results - "Schäpers, Thomas"

Growth and Electrical Characterization of Hybrid Core/Shell InAs/CdSe Nanowires by Kaladzhian, Mane, von den Driesch, Nils, Demarina, Nataliya, Povstugar, Ivan, Zimmermann, Erik, Jansen, Marvin Marco, Bae, Jin Hee, Krause, Christoph, Bennemann, Benjamin, Grützmacher, Detlev, Schäpers, Thomas, Pawlis, Alexander

“…Core-only InAs nanowires (NWs) remain of continuing interest for application in modern optical and electrical devices. In this paper, we utilize the II–VI…”
Get full text

Selective area growth and stencil lithography for in situ fabricated quantum devices by Schüffelgen, Peter, Rosenbach, Daniel, Li, Chuan, Schmitt, Tobias W., Schleenvoigt, Michael, Jalil, Abdur R., Schmitt, Sarah, Kölzer, Jonas, Wang, Meng, Bennemann, Benjamin, Parlak, Umut, Kibkalo, Lidia, Trellenkamp, Stefan, Grap, Thomas, Meertens, Doris, Luysberg, Martina, Mussler, Gregor, Berenschot, Erwin, Tas, Niels, Golubov, Alexander A., Brinkman, Alexander, Schäpers, Thomas, Grützmacher, Detlev

“…The interplay of Dirac physics and induced superconductivity at the interface of a 3D topological insulator (TI) with an s-wave superconductor (S) provides a…”
Get full text

Crystal Phase Transformation in Self-Assembled InAs Nanowire Junctions on Patterned Si Substrates by Rieger, Torsten, Rosenbach, Daniel, Vakulov, Daniil, Heedt, Sebastian, Schäpers, Thomas, Grützmacher, Detlev, Lepsa, Mihail Ion

“…We demonstrate the growth and structural characteristics of InAs nanowire junctions evidencing a transformation of the crystalline structure. The junctions are…”
Get full text

Aharonov-Bohm Interference and Phase-Coherent Surface-State Transport in Topological Insulator Rings by 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 Sb2Te3-based topological insulator ring structures. These devices display clear…”
Get full text

Molecular Beam Epitaxy Growth of GaAs/InAs Core–Shell Nanowires and Fabrication of InAs Nanotubes by Rieger, Torsten, Luysberg, Martina, Schäpers, Thomas, Grützmacher, Detlev, Lepsa, Mihail Ion

“…We present results about the growth of GaAs/InAs core–shell nanowires (NWs) using molecular beam epitaxy. The core is grown via the Ga droplet-assisted growth…”
Get full text

P–N Junctions in Ultrathin Topological Insulator Sb2Te3/Bi2Te3 Heterostructures Grown by Molecular Beam Epitaxy by Lanius, Martin, Kampmeier, Jörn, Weyrich, Christian, Kölling, Sebastian, Schall, Melissa, Schüffelgen, Peter, Neumann, Elmar, Luysberg, Martina, Mussler, Gregor, Koenraad, Paul M, Schäpers, Thomas, Grützmacher, Detlev

“…We fabricated topological insulating Sb2Te3/Bi2Te3 p–n heterostructures by means of molecular beam epitaxy and characterized the topography of the films by…”
Get full text

Crystal Phase Selective Growth in GaAs/InAs Core–Shell Nanowires by Rieger, Torsten, Schäpers, Thomas, Grützmacher, Detlev, Lepsa, Mihail Ion

“…We present a novel type of core–shell nanowires in which only certain parts of the core are covered by the shell. This is achieved by the crystal phase…”
Get full text

Realization of a vertical topological p–n junction in epitaxial Sb2Te3/Bi2Te3 heterostructures by Eschbach, Markus, Młyńczak, Ewa, Kellner, Jens, Kampmeier, Jörn, Lanius, Martin, Neumann, Elmar, Weyrich, Christian, Gehlmann, Mathias, Gospodarič, Pika, Döring, Sven, Mussler, Gregor, Demarina, Nataliya, Luysberg, Martina, Bihlmayer, Gustav, Schäpers, Thomas, Plucinski, Lukasz, Blügel, Stefan, Morgenstern, Markus, Schneider, Claus M., Grützmacher, Detlev

“…Three-dimensional (3D) topological insulators are a new state of quantum matter, which exhibits both a bulk band structure with an insulating energy gap as…”
Get full text

In-Plane Anisotropy of Electrical Transport in Y0.85Tb0.15Ba2Cu3O7−x Films by Lyatti, Matvey, Kraiem, Ines, Röper, Torsten, Gundareva, Irina, Mussler, Gregor, Jalil, Abdur Rehman, Grützmacher, Detlev, Schäpers, Thomas

“…We fabricated high-quality c-axis-oriented epitaxial YBa2Cu3O7−x films with 15% of the yttrium atoms replaced by terbium (YTBCO) and studied their electrical…”
Get full text

Quantum Transport and Nano Angle-resolved Photoemission Spectroscopy on the Topological Surface States of Single Sb2Te3 Nanowires by Arango, Yulieth C., Huang, Liubing, Chen, Chaoyu, Avila, Jose, Asensio, Maria C., Grützmacher, Detlev, Lüth, Hans, Lu, Jia Grace, Schäpers, Thomas

“…We report on low-temperature transport and electronic band structure of p -type Sb 2 Te 3 nanowires, grown by chemical vapor deposition. Magnetoresistance…”
Get full text

Electron Interference in Hall Effect Measurements on GaAs/InAs Core/Shell Nanowires by Haas, Fabian, Zellekens, Patrick, Lepsa, Mihail, Rieger, Torsten, Grützmacher, Detlev, Lüth, Hans, Schäpers, Thomas

“…We present low-temperature magnetotransport measurements on GaAs/InAs core/shell nanowires contacted by regular source–drain leads as well as laterally…”
Get full text

Flux periodic oscillations and phase-coherent transport in GeTe nanowire-based devices by Zhang, Jinzhong, Tse, Pok-Lam, Jalil, Abdur-Rehman, Kölzer, Jonas, Rosenbach, Daniel, Luysberg, Martina, Panaitov, Gregory, Lüth, Hans, Hu, Zhigao, Grützmacher, Detlev, Lu, Jia Grace, Schäpers, Thomas

“…Despite the fact that GeTe is known to be a very interesting material for applications in thermoelectrics and for phase-change memories, the knowledge on its…”
Get full text

Microwave spectroscopy of Andreev states in InAs nanowire-based hybrid junctions using a flip-chip layout by Zellekens, Patrick, Deacon, Russell S., Perla, Pujitha, Grützmacher, Detlev, Lepsa, Mihail Ion, Schäpers, Thomas, Ishibashi, Koji

“…Josephson junctions based on semiconductor nanowires are potential building blocks for electrically tunable qubit structures, e.g., the gatemon or the Andreev…”
Get full text

Stencil lithography of superconducting contacts on MBE-grown topological insulator thin films by Schüffelgen, Peter, Rosenbach, Daniel, Neumann, Elmar, Stehno, Martin P., Lanius, Martin, Zhao, Jialin, Wang, Meng, Sheehan, Brendan, Schmidt, Michael, Gao, Bo, Brinkman, Alexander, Mussler, Gregor, Schäpers, Thomas, Grützmacher, Detlev

“…•Shadow masks fabricated via focused ion beam.•Selective molecular beam epitaxy via stencil lithography.•Analysis of Al - (Bi0.06Sb0.94)2Te3…”
Get full text

Amphoteric Nature of Sn in CdS Nanowires by Zhang, Mengyao, Wille, Marcel, Röder, Robert, Heedt, Sebastian, Huang, Liubing, Zhu, Zheng, Geburt, Sebastian, Grützmacher, Detlev, Schäpers, Thomas, Ronning, Carsten, Lu, Jia Grace

“…High-quality CdS nanowires with uniform Sn doping were synthesized using a Sn-catalyzed chemical vapor deposition method. X-ray diffraction and transmission…”
Get full text

Flux Quantization Effects in InN Nanowires by Richter, Thomas, Blömers, Christian, Lüth, Hans, Calarco, Raffaella, Indlekofer, Michael, Marso, Michel, Schäpers, Thomas

“…InN nanowires, grown by plasma-enhanced molecular beam epitaxy, were investigated by means of magnetotransport. By performing temperature-dependent transport…”
Get full text

Simultaneous Integration of Different Nanowires on Single Textured Si (100) Substrates by Rieger, Torsten, Rosenbach, Daniel, Mussler, Gregor, Schäpers, Thomas, Grützmacher, Detlev, Lepsa, Mihail Ion

“…By applying a texturing process to silicon substrates, we demonstrate the possibility to integrate III–V nanowires on (100) oriented silicon substrates…”
Get full text

Supercurrent in Bi4Te3 Topological Material-Based Three-Terminal Junctions by Kölzer, Jonas, Jalil, Abdur Rehman, Rosenbach, Daniel, Arndt, Lisa, Mussler, Gregor, Schüffelgen, Peter, Grützmacher, Detlev, Lüth, Hans, Schäpers, Thomas

“…In this paper, in an in situ prepared three-terminal Josephson junction based on the topological insulator Bi4Te3 and the superconductor Nb the transport…”
Get full text

Fourier transformation based analysis routine for intermixed longitudinal and transversal hysteretic data for the example of a magnetic topological insulator by Zimmermann, Erik, Schleenvoigt, Michael, Rupp, Alina, Behner, Gerrit, Karthein, Jan, Teller, Justus, Schüffelgen, Peter, Lüth, Hans, Grützmacher, Detlev, Schäpers, Thomas

“…Abstract We present a symmetrization routine that optimizes and eases the analysis of imperfect, experimental data featuring the anomalous Hall hysteresis…”
Get full text

Lifetime of spin-orbit induced spin textures in a semiconductor heterostructure probed by quantum corrections to conductivity by Saito, Takahito, Nishimura, Toshimichi, Yoon, Ju-Young, Kölzer, Jonas, Iizasa, Daisuke, Kammermeier, Michael, Schäpers, Thomas, Nitta, Junsaku, Kohda, Makoto

“…The persistent spin helix (PSH) is the stable spin state protected by SU(2) spin-rotation symmetry. Long-lived spin textures, referred to as helical and…”
Get full text