Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Thomas Schäpers"'
Autor:
Patrick Zellekens, Russell S. Deacon, Pujitha Perla, Detlev Grützmacher, Mihail Ion Lepsa, Thomas Schäpers, Koji Ishibashi
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-9 (2022)
Josephson junctions, comprised of semiconducting nanowires, can be used to design qubit architectures but for the successful application, it is necessary to study their intrinsic excitation spectrum. Here, the authors adapt a flip-chip method to real
Externí odkaz:
https://doaj.org/article/53c219bdfdf143e0b358ca82bde4680e
Autor:
Matvey Lyatti, Ines Kraiem, Torsten Röper, Irina Gundareva, Gregor Mussler, Abdur Rehman Jalil, Detlev Grützmacher, Thomas Schäpers
Publikováno v:
Materials, Vol 17, Iss 3, p 558 (2024)
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 properties. The Tb substitution reduced the charge carrier density, resulting in increased
Externí odkaz:
https://doaj.org/article/dfacbaaf22b2464b98a2d61843440f48
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
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
Autor:
Jinzhong Zhang, Pok-Lam Tse, Abdur-Rehman Jalil, Jonas Kölzer, Daniel Rosenbach, Martina Luysberg, Gregory Panaitov, Hans Lüth, Zhigao Hu, Detlev Grützmacher, Jia Grace Lu, Thomas Schäpers
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
A deep understanding of low-temperature transport properties of GeTe material remains a challenge. Here, the authors investigate phase-coherent phenomena in GeTe nanowire structures where the occurrence of magnetic flux-periodic oscillations come fro
Externí odkaz:
https://doaj.org/article/a3feaa560faf488bb377b978de443326
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
Autor:
Takahito Saito, Toshimichi Nishimura, Ju-Young Yoon, Jonas Kölzer, Daisuke Iizasa, Michael Kammermeier, Thomas Schäpers, Junsaku Nitta, Makoto Kohda
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043217 (2022)
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 homogeneous spin modes, emerge as a result of this symmetry. These textures are potential candida
Externí odkaz:
https://doaj.org/article/50ebc49fccd34a5d8da4c33e78bab861
Publikováno v:
SciPost Physics Core, Vol 5, Iss 1, p 017 (2022)
Three-dimensional topological insulators (TIs) host helical Dirac surface states at the interface with a trivial insulator. In quasi-one-dimensional TI nanoribbon structures the wave function of surface charges extends phase-coherently along the p
Externí odkaz:
https://doaj.org/article/9322f3ccd23e4b6badc9bb44ca79bc5e
Autor:
Matvey Lyatti, Irina Gundareva, Torsten Röper, Zorica Popovic, Detlev Grützmacher, Thomas Schäpers
The d-wave symmetry of the order parameter with zero energy gap in nodal directions stands in the way of using high-temperature superconductors for quantum applications. We investigate the symmetry of the order parameter in ultra-thin YBa2Cu3O7-x (YB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23597bcaac52a5ca7bd08b56c19efd43
http://arxiv.org/abs/2304.03591
http://arxiv.org/abs/2304.03591
Autor:
Pujitha Perla, Anton Faustmann, Sebastian Kölling, Patrick Zellekens, Russell Deacon, H. Aruni Fonseka, Jonas Kölzer, Yuki Sato, Ana M. Sanchez, Oussama Moutanabbir, Koji Ishibashi, Detlev Grützmacher, Mihail Ion Lepsa, Thomas Schäpers
Publikováno v:
Physical review materials 6(2), 024602 (2022). doi:10.1103/PhysRevMaterials.6.024602
Semiconductor nanowires have emerged as versatile components in superconducting hybrid devices for Majorana physics and quantum computing. The transport properties of nanowires can be tuned either by field-effect or doping. We investigated a series o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::061018dd0029746b59a9568683fc25d5
https://doi.org/10.1103/physrevmaterials.6.024602
https://doi.org/10.1103/physrevmaterials.6.024602