Zobrazeno 1 - 10
of 11 201
pro vyhledávání: '"BRUNNER, K."'
Autor:
Patel, D. K., Fijalkowski, K. M., Kruskopf, M., Liu, N., Götz, M., Pesel, E., Jaime, M., Klement, M., Schreyeck, S., Brunner, K., Gould, C., Molenkamp, L. W., Scherer, H.
The quantum anomalous Hall effect holds promise as a disruptive innovation in condensed matter physics and metrology, as it gives access to Hall resistance quantization in terms of the von-Klitzing constant RK = h/e2 at zero external magnetic field.
Externí odkaz:
http://arxiv.org/abs/2410.13365
Autor:
Carralero, D., Estrada, T., García-Regaña, J. M., Sánchez, E., Windisch, T., Alonso, A., Maragkoudakis, E., Brandt, C., Brunner, K. J., Gallego-Castillo, C., Rahbarnia, K., Thienpondt, H., Team, the Wendelstein 7-X
In this work, we present the first experimental evidence of the presence of zonal flow (ZF) structures in the optimized stellarator Wendelstein 7-X. Using an assortment of diagnostics, flux surface-uniform, electrostatic flow oscillations have been m
Externí odkaz:
http://arxiv.org/abs/2406.12514
Autor:
Terry, J. L., von Stechow, A., Baek, S. G., Ballinger, S. B., Grulke, O., von Sehren, C., Laube, R., Killer, C., Scharmer, F., Brunner, K. J., Knauer, J., Bois, S., Team, the W7-X
A system for studying the spatio-temporal dynamics of fluctuations in the boundary of the W7-X plasma using the Gas-Puff Imaging (GPI) technique has been designed, constructed, installed, and operated. This GPI system addresses a number of challenges
Externí odkaz:
http://arxiv.org/abs/2405.09705
Autor:
Thienpondt, H., García-Regaña, J. M., Calvo, I., Alonso, J. A., Velasco, J. L., González-Jerez, A., Barnes, M., Brunner, K., Ford, O., Fuchert, G., Knauer, J., Pasch, E., Vanó, L., team, the Wendelstein 7-X
Publikováno v:
Physical Review Research 5 (2023) L022053
In reactor-relevant plasmas, neoclassical transport drives an outward particle flux in the core of large stellarators and predicts strongly hollow density profiles. However, this theoretical prediction is contradicted by experiments. In particular, i
Externí odkaz:
http://arxiv.org/abs/2209.04194
Autor:
Śnieżek, D., Wróbel, Jarosław, Kojdecki, M., Śliwa, C., Schreyeck, S., Brunner, K., Molenkamp, L. W., Karczewski, G., Wróbel, Jerzy
Publikováno v:
Phys. Rev. B 107, 045103 (2023)
Measurements of magnetotransport in SnTe/PbTe heterojunctions grown by the MBE technique on (001) undoped CdTe substrates were performed. At low magnetic fields, quantum corrections to conductivity were observed that may be attributed to the presence
Externí odkaz:
http://arxiv.org/abs/2208.05262
Interferometry is the primary density control diagnostic for large-scale fusion devices, including ITER and DEMO. In this paper we present a ray tracing simulation based on TRAVIS accounting for relativistic effects. The study shows that measurements
Externí odkaz:
http://arxiv.org/abs/2112.09363
Autor:
Liu, N., Schreyeck, S., Fijalkowski, K. M., Kamp, M., Brunner, K., Gould, C., Molenkamp, L. W.
MnBi2Te4 has recently been predicted and shown to be a magnetic topological insulator with intrinsic antiferromagnetic order. However, it remains a challenge to grow stoichiometric MnBi2Te4 films by molecular beam epitaxy (MBE) and to observe pure an
Externí odkaz:
http://arxiv.org/abs/2111.13960
Autor:
Fijalkowski, K. M., Liu, N., Hartl, M., Winnerlein, M., Mandal, P., Coschizza, A., Fothergill, A., Grauer, S., Schreyeck, S., Brunner, K., Greiter, M., Thomale, R., Gould, C., Molenkamp, L. W.
Publikováno v:
Phys. Rev. B 103, 235111 (2021)
In recent attempts to observe axion electrodynamics, much effort has focused on trilayer heterostructures of magnetic topological insulators, and in particular on the examination of a so-called zero Hall plateau, which has misguidedly been overstated
Externí odkaz:
http://arxiv.org/abs/2105.09608
Autor:
Brunner, K. J., Knauer, J., Meineke, J., Stern, M., Hirsch, M., Kursinski, B., Wolf, R. C., team, the W7-X
Fusion experiments rely heavily on the measurement of the line-integrated electron density by interferometry for density feed-back control. In recent years the discharge length has increased dramatically and is continuing to rise, resulting in enviro
Externí odkaz:
http://arxiv.org/abs/1911.01883
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