Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Jürgen Schurr"'
Autor:
Mattias Kruskopf, Albert F. Rigosi, S. Bauer, Martin Gotz, Eckart Pesel, Klaus Pierz, Jürgen Schurr, Atasi Chatterjee, Dinesh K. Patel, Randolph E. Elmquist, Yaowaret Pimsut
Publikováno v:
IEEE Trans Electron Devices
A new type of graphene-based quantum Hall standards is tested for electrical quantum metrology applications at alternating current (ac) and direct current (dc). The devices are functionalized with Cr(CO)(3) to control the charge carrier density and h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ed392214e89cc15af4483a78e1b9cde
https://doi.org/10.1109/ted.2021.3082809
https://doi.org/10.1109/ted.2021.3082809
Autor:
S. Bauer, Martin Gotz, Chieh-I Liu, Mattias Kruskopf, Jürgen Schurr, Dinesh K. Patel, Albert F. Rigosi, Yicheng Wang, Klaus Pierz, Eckard Pesel, Randolph E. Elmquist, Yefei Yin
Publikováno v:
2020 Conference on Precision Electromagnetic Measurements (CPEM).
The frequency dependence of the quantized Hall resistance at alternating current results from capacitive losses inside the sample as well as between the sample and external parts. In this joint effort, we report on ac quantum Hall measurements of a g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60869a3664f4b5c4f1e1e212776f282b
https://doi.org/10.1109/cpem49742.2020.9191851
https://doi.org/10.1109/cpem49742.2020.9191851
Autor:
Ralf Behr, J. Lee, Mattias Kruskopf, Oliver Kieler, Yaowaret Pimsut, Jürgen Schurr, S. Bauer, Luis Palafox
Publikováno v:
2020 Conference on Precision Electromagnetic Measurements (CPEM).
A novel four-terminal pair impedance bridge combined with a quantum Hall resistor will be presented. The impedance bridge is based on pulse-driven Josephson arrays. A very simple setup is possible due to the triple-series connection of the quantum Ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9d6ae684ebbe3ffb9212f2d279ec1f5
https://doi.org/10.1109/cpem49742.2020.9191895
https://doi.org/10.1109/cpem49742.2020.9191895
Autor:
Felix Lüönd, A. Müller, Franz J. Ahlers, Mattias Kruskopf, Klaus Pierz, Frederic Overney, C.-C. Kalmbach, Jürgen Schurr, Blaise Jeanneret
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 66:1459-1466
This paper describes the measurements of the ac quantum Hall effect (QHE) in epitaxial graphene in a set of six different devices. In typical graphene devices, capacitive losses cause a negative frequency dependence of the quantum Hall resistance, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d6081bd371081ecd8513b72449073d4
https://doi.org/10.1109/tim.2017.2652501
https://doi.org/10.1109/tim.2017.2652501
Publikováno v:
Metrologia. 54:152-160
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7975bc15c10d91bab279e2f346331ec
https://doi.org/10.1088/1681-7575/aa5ba8
https://doi.org/10.1088/1681-7575/aa5ba8
Autor:
Jonas Herick, S. Bauer, Jürgen Schurr, Mattias Kruskopf, Oliver Kieler, Ralf Behr, J. Lee, Luis Palafox, Yaowaret Pimsut, Martin Gotz, Randolph E. Elmquist
Publikováno v:
Measurement Science and Technology. 32:065007
This paper introduces a four-terminal-pair impedance bridge based on pulse-driven Josephson junctions arrays which is designed to link any kind of impedance to the quantized Hall resistance. The unique features of the quantized Hall resistance in a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::face58c9f62123e3869ae30294a9c297
https://doi.org/10.1088/1361-6501/abcff3
https://doi.org/10.1088/1361-6501/abcff3
Autor:
Jürgen Schurr
Publikováno v:
IEEE Instrumentation & Measurement Magazine. 19:7-14
Isaac Newton's main work, Philosophiae Naturalis Principia Mathematica, published in 1686, is (as stated in its first American edition) a revolution from the thick darkness of the Middle Ages man's struggling spirit... to the investigation of physica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b59c8742a56eb5e7872e7f0dbfcee73
https://doi.org/10.1109/mim.2016.7524200
https://doi.org/10.1109/mim.2016.7524200
Publikováno v:
2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).
Pulse-driven Josephson arrays successfully demonstrated their high potential for impedance metrology in the last years. With their high spectral purity and fundamental accuracy, they are perfectly suited for impedance measurements over the whole comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21bb3a32fc1e97ba468ea605b52a6d47
https://doi.org/10.1109/cpem.2018.8501036
https://doi.org/10.1109/cpem.2018.8501036
Autor:
Jürgen Schurr
Publikováno v:
IEEE Instrumentation & Measurement Magazine. 19:24-26
In 1980, Klaus von Klitzing discovered steps in the Hall resistance of special semiconductor devices. Usually, the Hall effect (named after its discoverer Edwin Hall) occurs in a thin metal film when a magnetic field is applied perpendicular to the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07745cad5702fc045cdcb3a74d01633a
https://doi.org/10.1109/mim.2016.7384956
https://doi.org/10.1109/mim.2016.7384956
Autor:
Tobias Bergsten, Frank Hohls, C.-C. Kalmbach, Rolf J. Haug, F. J. Ahlers, Klaus Pierz, A. Müller, Mattias Kruskopf, Jürgen Schurr
Publikováno v:
Physical Review B. 96
We investigate the properties of the magnetocapacitance and dissipation factor of epitaxial graphene Hall bars with different electrode configurations to gain insight into the underlying physical mechanisms. The dependence of magnetocapacitance and d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77b5fd7a0f5ac6b1726f1e7a0a9ff68
https://doi.org/10.1103/physrevb.96.155443
https://doi.org/10.1103/physrevb.96.155443