Hauptseite > Publikationsdatenbank > Supercurrent in Bi4Te3 Topological Material-Based Three-Terminal Junctions > print

001     1005310
005     20231027114357.0
024 7 _ |a 10.3390/nano13020293
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100 1 _ |a Kölzer, Jonas
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245 _ _ |a Supercurrent in Bi4Te3 Topological Material-Based Three-Terminal Junctions
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520 _ _ |a 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 reveal extended areas of Josephson supercurrent, including coupling effects between adjacent superconducting electrodes. The observed dynamics for the coupling of the junctions is interpreted using a numerical simulation of a similar geometry based on a resistively and capacitively shunted Josephson junction model. The temperature dependency indicates that the device behaves similar to prior experiments with single Josephson junctions comprising topological insulators’ weak links. Irradiating radio frequencies to the junction, we find a spectrum of integer Shapiro steps and an additional fractional step, which is interpreted with a skewed current–phase relationship. In a perpendicular magnetic field, we observe Fraunhofer-like interference patterns in the switching currents.
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700 1 _ |a Jalil, Abdur Rehman
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700 1 _ |a Rosenbach, Daniel
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700 1 _ |a Arndt, Lisa
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700 1 _ |a Mussler, Gregor
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700 1 _ |a Schüffelgen, Peter
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700 1 _ |a Grützmacher, Detlev
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700 1 _ |a Lüth, Hans
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700 1 _ |a Schäpers, Thomas
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773 _ _ |a 10.3390/nano13020293
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|t Nanomaterials
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856 4 _ |u https://juser.fz-juelich.de/record/1005310/files/nanomaterials-13-00293-v2.pdf
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