Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Khrapai, V."'
Publikováno v:
JETP Letters, 2024
We critically address the recent experiment [Science 382, 907 (2023)] on nonequilibrium transport and noise in a strange metal YbRh2Si2 patterned into the nanowire shape. In the long device, resistivity, differential resistance and current noise data
Externí odkaz:
http://arxiv.org/abs/2402.09946
Autor:
Tikhonov, E. S., Khrapai, V. S.
Publikováno v:
Phys. Rev. B 110, 075429 (2024)
For the three-terminal NSN device with single-mode normal terminals and without Coulomb blockade, we propose the interpretation of charge transfer process which allows us to consistently characterize the device operation as that of a Cooper pair spli
Externí odkaz:
http://arxiv.org/abs/2311.11954
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:
Baeva, E. M., Kolbatova, A. I., Titova, N. A., Saha, S., Boltasseva, A., Bogdanov, S., Shalaev, V. M., Semenov, A. V., Levchenko, A., Goltsman, G. N., Khrapai, V. S.
Publikováno v:
Phys. Rev. B 110, 104519 (2024)
We investigate the temporal and spatial scales of resistance fluctuations ($R$-fluctuations) at the superconducting resistive transition accessed through voltage fluctuations measurements in thin epitaxial TiN films. This material is characterized by
Externí odkaz:
http://arxiv.org/abs/2202.06309
Autor:
Baeva, E. M., Kolbatova, A. I., Titova, N. A., Saha, S., Boltasseva, A., Bogdanov, S., Shalaev, V. M., Semenov, A. V., Goltsman, G. N., Khrapai, V. S.
Publikováno v:
Supercond. Sci. Technol. 37, 105017 (2024)
We investigate the effect of various fluctuation mechanisms on the DC resistance in superconducting devices based on epitaxial titanium nitride (TiN) films. The samples we studied show a relatively steep resistive transition (RT), with a transition w
Externí odkaz:
http://arxiv.org/abs/2202.06310
Publikováno v:
Phys. Rev. B 104, 125409 (2021)
We investigate diffusive nanowire-based structures with two normal terminals on the sides and a central superconducting island in the middle, which is either grounded or floating. Using a semiclassical calculation we demonstrate that both device layo
Externí odkaz:
http://arxiv.org/abs/2102.10843
Autor:
Baeva, E. M., Titova, N. A., Veyrat, L., Sacépé, B., Semenov, A. V., Goltsman, G. N., Kardakova, A. I., Khrapai, V. S.
Publikováno v:
Phys. Rev. Applied 15, 054014 (2021)
Here we examine the role of the amorphous insulating substrate in the thermal relaxation in thin NbN, InO$_x$, and Au/Ni films at temperatures above 5 K. The studied samples are made up of metal bridges on an amorphous insulating layer lying on or su
Externí odkaz:
http://arxiv.org/abs/2101.07071
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
Autor:
Tikhonov, E. S., Denisov, A. O., Piatrusha, S. U., Khrapach, I. N., Pekola, J. P., Karimi, B., Jabdaraghi, R. N., Khrapai, V. S.
Publikováno v:
Phys. Rev. B 102, 085417 (2020)
Shot noise measurements are widely used for the characterization of nonequilibrium configurations in electronic conductors. The recently introduced quantum tomography approach was implemented for the studies of electronic wavefunctions of few-electro
Externí odkaz:
http://arxiv.org/abs/2001.07563