Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Libisch F"'
We investigate the stability of destructive quantum interference (DQI) in electron transport through graphene nanostructures connected to source and drain electrodes. The fingerprint of DQI is the presence of an antiresonance in the transmission func
Externí odkaz:
http://arxiv.org/abs/2302.10302
Autor:
Johnsen, T., Schattauer, C., Samaddar, S., Weston, A., Hamer, M., Watanabe, K., Taniguchi, T., Gorbachev, R., Libisch, F., Morgenstern, M.
Publikováno v:
Phys. Rev. B 107, 115426 (2023) (editors suggestion)
Quantum Hall edge states are the paradigmatic example of the bulk-boundary correspondence. They are prone to intricate reconstructions calling for their detailed investigation at high spatial resolution. Here, we map quantum Hall edge states of monol
Externí odkaz:
http://arxiv.org/abs/2210.01831
Autor:
Neuhaus, M., Schötz, J., Aulich, M., Srivastava, A., Kimbaras, D., Smejkal, V., Pervak, V., Alharbi, M., Azeer, A. M., Libisch, F., Lemell, C., Burgdörfer, J., Wang, Z., Kling, M. F.
Transient field-resolved spectroscopy enables studies of ultrafast dynamics in molecules, nanostructures, or solids with sub-cycle resolution, but previous work has so far concentrated on extracting the dielectric response at frequencies below 50\,TH
Externí odkaz:
http://arxiv.org/abs/2107.00294
Autor:
Banszerus, L., Frohn, B., Fabian, T., Somanchi, S., Epping, A., Müller, M., Neumaier, D., Watanabe, K., Taniguchi, T., Libisch, F., Beschoten, B., Hassler, F., Stampfer, C.
Publikováno v:
Phys. Rev. Lett. 124, 177701 (2020)
We report on measurements of quantized conductance in gate-defined quantum point contacts in bilayer graphene that allow the observation of subband splittings due to spin-orbit coupling. The size of this splitting can be tuned from 40 to 80 $\mu$eV b
Externí odkaz:
http://arxiv.org/abs/1911.13176
Autor:
Banszerus, L., Sohier, T., Epping, A., Winkler, F., Libisch, F., Haupt, F., Watanabe, K., Taniguchi, T., Müller-Caspary, K., Marzari, N., Mauri, F., Beschoten, B., Stampfer, C.
High carrier mobilities play a fundamental role for high-frequency electronics, integrated optoelectronics as well as for sensor and spintronic applications, where device performance is directly linked to the magnitude of the carrier mobility. Van de
Externí odkaz:
http://arxiv.org/abs/1909.09523
Publikováno v:
Phys. Rev. Lett. 123, 146401 (2019)
Single-photon emitters play a key role in present and emerging quantum technologies. Several recent measurements have established monolayer WSe$_2$ as a promising candidate for a reliable single photon source. The origin and underlying microscopic pr
Externí odkaz:
http://arxiv.org/abs/1904.03217
Autor:
Sonntag, J., Reichardt, S., Wirtz, L., Beschoten, B., Katsnelson, M. I., Libisch, F., Stampfer, C.
Publikováno v:
Phys. Rev. Lett. 120, 187701 (2018)
We present magneto-Raman spectroscopy measurements on suspended graphene to investigate the charge carrier density-dependent electron-electron interaction in the presence of Landau levels. Utilizing gate-tunable magneto-phonon resonances, we extract
Externí odkaz:
http://arxiv.org/abs/1712.05648
Publikováno v:
J. Chem. Phys. 147, 034110 (2017)
We present an embedding approach for semiconductors and insulators based on or- bital rotations in the space of occupied Kohn-Sham orbitals. We have implemented our approach in the popular VASP software package. We demonstrate its power for defect st
Externí odkaz:
http://arxiv.org/abs/1703.10077
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Autor:
Terrés, B., Chizhova, L. A., Libisch, F., Peiro, J., Jörger, D., Engels, S., Girschik, A., Watanabe, K., Taniguchi, T., Rotkin, S. V., Burgdörfer, J., Stampfer, C.
Quantum point contacts (QPCs) are cornerstones of mesoscopic physics and central building blocks for quantum electronics. Although the Fermi wave-length in high-quality bulk graphene can be tuned up to hundreds of nanometers, the observation of quant
Externí odkaz:
http://arxiv.org/abs/1603.00844