| Records |
| Author |
Murphy, A.; Semenov, A.; Korneev, A.; Korneeva, Y.; Gol’tsman, G.; Bezryadin, A. |
| Title |
Dark counts initiated by macroscopic quantum tunneling in NbN superconducting photon detectors |
Type |
Miscellaneous |
| Year |
2014 |
Publication |
arXiv |
Abbreviated Journal |
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Issue |
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Pages |
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| Keywords |
NbN SSPD |
| Abstract |
We perform measurements of the switching current distributions of three w = 120 nm wide, 4 nm thick NbN superconducting strips which are used for single-photon detectors. These strips are much wider than the diameter the vortex cores, so they are classified as quasi-two-dimensional (quasi-2D). We discover evidence of macroscopic quantum tunneling by observing the saturation of the standard deviation of the switching distributions at temperatures around 2 K. We analyze our results using the Kurkijarvi-Garg model and find that the escape temperature also saturates at low temperatures, confirming that at sufficiently low temperatures, macroscopic quantum tunneling is possible in quasi-2D strips and can contribute to dark counts observed in single photon detectors. |
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no |
Call Number  |
murphy2014dark |
Serial |
1356 |
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| Author |
Andreev, A. F. |
| Title |
The thermal conductivity of the intermediate state in superconductors |
Type |
Journal Article |
| Year |
1964 |
Publication |
Sov. Phys. JETP |
Abbreviated Journal |
Sov. Phys. JETP |
| Volume |
19 |
Issue |
5 |
Pages |
1228-1231 |
| Keywords |
superconductors, intermediate state, thermal conductivity |
| Abstract |
It is shown that, owing to over-the-barrier reflection of electron excitations at the boundary of the normal and superconducting phases, a temperature drop occurs when there is a flow of heat. The additional thermal resistance of a superconductor in the intermediate state is calculated. It is shown that it increases exponentially as the temperature is lowered and does not depend on the electron mean free path. |
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no |
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MSPU @ s @ Andreev_reflection |
Serial |
216 |
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Гершензон, Е. М.; Гершензон, М. Е.; Гольцман, Г. Н.; Семенов, А. Д.; Сергеев, А. В. |
| Title |
Неселективное воздействие электромагнитного излучения на сверхпроводящую пленку в резистивном состоянии |
Type |
Journal Article |
| Year |
1982 |
Publication |
Письма в ЖЭТФ |
Abbreviated Journal |
Письма в ЖЭТФ |
| Volume |
36 |
Issue |
7 |
Pages |
241-244 |
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russian |
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Duplicated as 1717 |
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no |
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MSPU @ s @ |
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225 |
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Marsili, F.; Bitauld, D.; Divochiy, A.; Gaggero, A.; Leoni, R.; Mattioli, F.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G.; Lagoudakis, K.G.; Benkahoul, M.; Lévy, F.; Fiore, A. |
| Title |
Superconducting nanowire photon number resolving detector at telecom wavelength |
Type |
Conference Article |
| Year |
2008 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
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Issue |
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Pages |
Qmj1 (1 to 2) |
| Keywords |
PNR SSPD; SNSPD; Detectors; Infrared; Low light level; Diode lasers; Photons; Scanning electron microscopy; Superconductors; Ti:sapphire lasers |
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We demonstrate a photon-number-resolving (PNR) detector, based on parallel superconducting nanowires, capable of resolving up to 5 photons in the telecommunication wavelength range, with sensitivity and speed far exceeding existing approaches. |
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Optical Society of America |
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978-1-55752-859-9 |
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no |
| Call Number |
Marsili:08 |
Serial |
1243 |
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| Author |
Matyushkin, Y.; Kaurova, N.; Voronov, B.; Goltsman, G.; Fedorov, G. |
| Title |
On chip carbon nanotube tunneling spectroscopy |
Type |
Journal Article |
| Year |
2020 |
Publication |
Fullerenes, Nanotubes and Carbon Nanostructures |
Abbreviated Journal |
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| Volume |
28 |
Issue |
1 |
Pages |
50-53 |
| Keywords |
carbon nanotubes, CNT, scanning tunneling microscope, STM |
| Abstract |
We report an experimental study of the band structure of individual carbon nanotubes (SCNTs) based on investigation of the tunneling density of states, i.e. tunneling spectroscopy. A common approach to this task is to use a scanning tunneling microscope (STM). However, this approach has a number of drawbacks, to overcome which, we propose another method – tunneling spectroscopy of SCNTs on a chip using a tunneling contact. This method is simpler, cheaper and technologically advanced than the STM. Fabrication of a tunnel contact can be easily integrated into any technological route, therefore, a tunnel contact can be used, for example, as an additional tool in characterizing any devices based on individual CNTs. In this paper we demonstrate a simple technological procedure that results in fabrication of good-quality tunneling contacts to carbon nanotubes. |
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Taylor & Francis |
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no |
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doi:10.1080/1536383X.2019.1671365 |
Serial |
1269 |
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