Zobrazeno 1 - 10
of 1 567
pro vyhledávání: '"A. Himmler"'
Publikováno v:
Magnetic Resonance, Vol 3, Pp 203-209 (2022)
Electroplating the waveguide of a 7 T polarizer in a simple innovative way increased microwave power delivered to the sample by 3.1 dB. Silicon particles, while interesting for hyperpolarized MRI applications, are challenging to polarize due to ineff
Externí odkaz:
https://doaj.org/article/5d2d6d7db1854b9e9abe594eaa27ffaa
Autor:
Hartl, S., Freund, L., Kühn, M., Ziegler, J., Richter, E., Himmler, W., Bärenfänger, J., Kozlov, D. A., Mikhailov, N. N., Weis, J., Weiss, D.
We study the quantum Hall effect (QHE) in the three-dimensional topological insulator HgTe, which features topological Dirac-type surface states in a bulk gap opened by strain. Despite the co-existence of multiple carrier subsystems, the system exhib
Externí odkaz:
http://arxiv.org/abs/2410.18759
Autor:
Richter, Elisabeth, Barth, Michael, Kozlov, Dmitriy A., Knothe, Angelika, Mikhailov, Nikolay N., Steidl, Juliane, Gorini, Cosimo, Hartl, Stefan, Himmler, Wolfgang, Richter, Klaus, Weiss, Dieter
We explore electrical transport through a point contact in strained HgTe, a three-dimensional topological insulator. In the absence of a magnetic field $B$, there is no quantization. However, under higher magnetic fields, we observe distinct non-inte
Externí odkaz:
http://arxiv.org/abs/2410.17786
Autor:
von Witte, Gevin, Himmler, Aaron, Hyppönen, Viivi, Jäntti, Jiri, Albannay, Mohammed M., Moilanen, Jani O., Ernst, Matthias, Lehto, Vesa-Pekka, Riikonen, Joakim, Kozerke, Sebastian, Kettunen, Mikko I., Tamarov, Konstantin
Si nanoparticles (NPs) have been actively developed as a hyperpolarized magnetic resonance imaging (MRI) contrast agent with an imaging window close to one hour. However, the progress in the development of NPs has been hampered by the incomplete unde
Externí odkaz:
http://arxiv.org/abs/2401.08320
Dynamic nuclear polarization enables the hyperpolarization of nuclear spins beyond the thermal-equilibrium Boltzmann distribution. However, it is often unclear why the experimentally measured hyperpolarization is below the theoretical achievable maxi
Externí odkaz:
http://arxiv.org/abs/2312.07244
Autor:
Himmler, Wolfgang, Fischer, Ralf, Barth, Michael, Fuchs, Jacob, Kozlov, Dmitry A., Mikhailov, Nikolay N., Dvoretsky, Sergey A., Strunk, Christoph, Gorini, Cosimo, Richter, Klaus, Weiss, Dieter
Wires made of topological insulators (TI) are a promising platform for searching for Majorana bound states. These states can be probed by analyzing the fractional ac Josephson effect in Josephson junctions with the TI wire as a weak link. An axial ma
Externí odkaz:
http://arxiv.org/abs/2211.06702
Autor:
Fischer, Ralf, Picó-Cortés, Jordi, Himmler, Wolfgang, Platero, Gloria, Grifoni, Milena, Kozlov, Dmitriy A., Mikhailov, N. N., Dvoretsky, Sergey A., Strunk, Christoph, Weiss, Dieter
Topological insulator (TI) nanowires in proximity with conventional superconductors have been proposed as a tunable platform to realize topological superconductivity and Majorana zero modes (MZM). The tuning is done using an axial magnetic flux $\Phi
Externí odkaz:
http://arxiv.org/abs/2110.05143
Publikováno v:
In Precambrian Research 15 August 2024 410
Publikováno v:
In European Economic Review July 2024 166
Autor:
Tobias Himmler, Doris Wagner, Diana Sahy, Sunil Vadakkepuliyambatta, Shyam Chand, Tõnu Martma, Kalle Kirsimäe, Rune Mattingsdal, Giuliana Panieri, Stefan Bünz, Daniel J. Condon, Jochen Knies, Aivo Lepland
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The hydrocarbon seepage chronology during deglaciation across the formerly glaciated Barents Sea was established using uranium-thorium (U–Th) dating of seep carbonates. Seep carbonates were sampled with remotely operated vehicles (ROV) from the sea
Externí odkaz:
https://doaj.org/article/e6919fd482994d92850de99e0fa77be8