Zobrazeno 1 - 10
of 36
pro vyhledávání: '"S. Schnez"'
Publikováno v:
Physical Review B. 95
Autor:
Yigal Meir, Thomas Ihn, S. Schnez, Christoph Stampfer, Klaus Ensslin, Johannes Güttinger, S. Dröscher, Magdalena Huefner, Helena S. Knowles
Publikováno v:
Solid State Communications. 152:1306-1310
We report two experiments on graphene nanostructures. The first was performed on a graphene nanoribbon, where the nature of electronic transport was investigated in detail. Electrons or holes are found to localize in pockets of the potential along th
Autor:
Christoph Stampfer, E. Schurtenberger, S. Hellmüller, A. Jacobsen, Thomas Ihn, S. Dröscher, Johannes Güttinger, S. Schnez, Klaus Ensslin, T. Frey, F. Molitor
Publikováno v:
ResearcherID
Graphene, a single layer of carbon atoms forming a perfectly stable and clean two-dimensional crystal with very few defects, has been proclaimed to be a new revolutionary material for electronics. These hopes rest mainly on the unique band structure
Autor:
Kenji Shibata, Esa Räsänen, Nikola Pascher, Thomas Ihn, Klaus Ensslin, P. J. J. Luukko, S. Schnez, Kazuhiko Hirakawa
Publikováno v:
Applied Physics Express. 7(4)
We have investigated electron magneto-tunneling through single self-assembled InAs quantum dashes (QDHs) coupled to metal nanogap electrodes. The samples operate as single electron transistors and exhibit clear shell structures, reflecting the anisot
Autor:
Thomas Ihn, Johannes Güttinger, Klaus Ensslin, S. Dröscher, Christoph Stampfer, A. Jacobsen, F. Molitor, S. Schnez
Publikováno v:
Reports on Progress in Physics
We review transport experiments on graphene quantum dots and narrow graphene constrictions. In a quantum dot, electrons are confined in all lateral dimensions, offering the possibility for detailed investigation and controlled manipulation of individ
Publikováno v:
Physical Review B. 84
We perform scanning-gate microscopy on a quantum-point contact. It is defined in a high-mobility two-dimensional electron gas of an AlGaAs/GaAs heterostructure, giving rise to a weak disorder potential. The lever arm of the scanning tip is significan
Autor:
Christoph Stampfer, S. Dröscher, Helena S. Knowles, Pauline Simonet, Thomas Ihn, Klaus Ensslin, F. Molitor, S. Schnez, Johannes Güttinger, A. Jacobsen
Publikováno v:
Extended Abstracts of the 2011 International Conference on Solid State Devices and Materials.
Autor:
Thomas Ihn, Magdalena Huefner, Bruno Kueng, Klaus Ensslin, Matthias Reinwald, S. Schnez, Werner Wegscheider
Publikováno v:
Physical Review B. 83
The metallic tip of a scanning force microscope operated at $300\text{}\mathrm{m}\mathrm{K}$ is used to locally induce a potential in a fully controllable double quantum dot defined via local anodic oxidation in a GaAs/AlGaAs heterostructure. Using s
We analytically calculate the energy spectrum of a circular graphene quantum dot with radius R subjected to a perpendicular magnetic field B by applying the infinite-mass boundary condition. We can retrieve well-known limits for the cases R, B going
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12620fbbf3fc1dac5e00f2c1e1f41e60
http://arxiv.org/abs/0810.3216
http://arxiv.org/abs/0810.3216