Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Koblmüller G"'
Publikováno v:
Appl. Phys. Lett. 91, 161904 (2007)
Real-time analysis of the growth modes during homoepitaxial (0001)GaN growth by plasma-assisted molecular beam epitaxy was performed using reflection high energy electron diffraction. A growth mode map was established as a function of Ga/N flux ratio
Externí odkaz:
http://arxiv.org/abs/2401.17341
Publikováno v:
J. Appl. Phys. 104, 033541 (2008)
Thermal decomposition of wurtzite (0001)-oriented GaN was analyzed: in vacuum, under active N exposure, and during growth by rf-plasma assisted molecular beam epitaxy. The GaN decomposition rate was determined by measurements of the Ga desorption usi
Externí odkaz:
http://arxiv.org/abs/2401.17339
Publikováno v:
Phys. Rev. B 109, L140501 (2024)
We investigate the impact of transport current on the superconducting order parameter in superconducting islands in full-shell epitaxial Al-InAs nanowires. Depending on a device layout, the suppression of superconductivity occurs in three fundamental
Externí odkaz:
http://arxiv.org/abs/2311.10676
Autor:
Denisov, A. O., Bubis, A. V., Piatrusha, S. U., Titova, N. A., Nasibulin, A. G., Becker, J., Treu, J., Ruhstorfer, D., Koblmueller, G., Tikhonov, E. S., Khrapai, V. S.
Publikováno v:
Semicond. Sci. Technol. 36 (2021) 09LT04
Nonlocal quasiparticle transport in normal-superconductor-normal (NSN) hybrid structures probes sub-gap states in the proximity region and is especially attractive in the context of Majorana research. Conductance measurement provides only partial inf
Externí odkaz:
http://arxiv.org/abs/2101.02128
Autor:
Denisov, A. O., Bubis, A. V., Piatrusha, S. U., Titova, N. A., Nasibulin, A. G., Becker, J., Treu, J., Ruhstorfer, D., Koblmueller, G., Tikhonov, E. S., Khrapai, V. S.
Publikováno v:
Nanomaterials 2022, 12(9), 1461
Mesoscopic superconductivity deals with various quasiparticle excitation modes, only one of them -- the charge-mode -- being directly accessible for conductance measurements due to the imbalance in populations of quasi-electron and quasihole excitati
Externí odkaz:
http://arxiv.org/abs/2006.09803
Akademický článek
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Autor:
Piatrusha, S. U., Ginzburg, L. V., Tikhonov, E. S., Shovkun, D. V., Koblmueller, G., Bubis, A. V., Grebenko, A. K., Nasibulin, A. G., Khrapai, V. S.
Typical experimental measurement is set up as a study of the system's response to a stationary external excitation. This approach considers any random fluctuation of the signal as spurious contribution which is to be eliminated via time-averaging or,
Externí odkaz:
http://arxiv.org/abs/1806.02200
Autor:
Bubis, A. V., Denisov, A. O., Piatrusha, S. U., Batov, I. E., Becker, J., Treu, J., Ruhstorfer, D., Koblmüller, G., Khrapai, V. S.
Publikováno v:
Semicond. Sci. Technol. 32 094007 (2017)
We investigate the proximity effect in InAs nanowire (NW) junctions with superconducting contacts made of Al. The carrier density in InAs is tuned by means of the back gate voltage $V_g$. At high positive $V_g$ the devices feature transport signature
Externí odkaz:
http://arxiv.org/abs/1705.00443
Akademický článek
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Long-term mutual phase locking of picosecond pulse pairs generated by a semiconductor nanowire laser
Autor:
Mayer, B., Regler, A., Sterzl, S., Stettner, T., Koblmüller, G., Kaniber, M., Lingnau, B., Lüdge, K., Finley, J. J.
The ability to generate phase-stabilised trains of ultrafast laser pulses by mode-locking underpins photonics research in fields such as precision metrology and spectroscopy. However, the complexity of conventional mode-locked laser systems, combined
Externí odkaz:
http://arxiv.org/abs/1603.02169