Records |
Author |
Vercruyssen, N.; Verhagen, T. G. A.; Flokstra, M. G.; Pekola, J. P.; Klapwijk, T. M. |
Title |
Evanescent states and nonequilibrium in driven superconducting nanowires |
Type |
Journal Article |
Year |
2012 |
Publication |
Phys. Rev. B |
Abbreviated Journal |
Phys. Rev. B |
Volume |
85 |
Issue |
|
Pages |
224503(1-10) |
Keywords |
Al HEB, Al superconducting nanowire, global state, bimodal state, quasiclassical kinetic equations, Usadel equation |
Abstract |
We study the nonlinear response of current transport in a superconducting diffusive nanowire between normal reservoirs. We demonstrate theoretically and experimentally the existence of two different superconducting states appearing when the wire is driven out of equilibrium by an applied bias, called the global and bimodal superconducting states. The different states are identified by using two-probe measurements of the wire, and measurements of the local density of states with tunneling probes. The analysis is performed within the framework of the quasiclassical kinetic equations for diffusive superconductors. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
|
Approved |
no |
Call Number |
|
Serial ![sorted by Serial field, descending order (down)](img/sort_desc.gif) |
898 |
Permanent link to this record |
|
|
|
Author |
Ynvesson, K. Sigfrid; Kollberg, Erik L. |
Title |
Optimum receiver noise temperature for NbN HEB mixers according to standard model |
Type |
Conference Article |
Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
566-582 |
Keywords |
HEB mixer model, standard model, electro-thermal feedback, self-heating parameter, heating efficiency |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
|
Approved |
no |
Call Number |
|
Serial ![sorted by Serial field, descending order (down)](img/sort_desc.gif) |
895 |
Permanent link to this record |
|
|
|
Author |
Kaganov, M. L.; Lifshitz, I. M.; Tanatarov, L. V. |
Title |
Relaxation between electrons and the crystalline lattice |
Type |
Journal Article |
Year |
1957 |
Publication |
Sov. Phys. JETP |
Abbreviated Journal |
Sov. Phys. JETP |
Volume |
4 |
Issue |
2 |
Pages |
173-178 |
Keywords |
HEB, nonlinear equations, numerical model |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
|
Approved |
no |
Call Number |
|
Serial ![sorted by Serial field, descending order (down)](img/sort_desc.gif) |
894 |
Permanent link to this record |
|
|
|
Author |
Khosropanah, P.; Merkel, H.; Yngvesson, S.; Adam, A.; Cherednichenko, S.; Kollberg, E. |
Title |
A distributed device model for phonon-cooled HEB mixers predicting IV characteristics, gain, noise and IF bandwidth |
Type |
Conference Article |
Year |
2000 |
Publication |
Proc. 11th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
474-488 |
Keywords |
HEB mixer numerical model, diffusion cooling channel, diffusion channel, distributed HEB model, distributed model |
Abstract |
A distributed model for phonon-cooled superconductor hot electron bolometer (HEB) mixers is given, which is based on solving the one-dimensional heat balance equation for the electron temperature profile along the superconductor strip. In this model it is assumed that the LO power is absorbed uniformly along the bridge but the DC power absorption depends on the local resistivity and is thus not uniform. The electron temperature dependence of the resistivity is assumed to be continuous and has a Fermi form. These assumptions are used in setting up the non-linear heat balance equation, which is solved numerically for the electron temperature profile along the bolometer strip. Based on this profile the resistance of the device and the IV curves are calculated. The IV curves are in excellent agreement with measurement results. Using a small signal model the conversion gain of the mixer is obtained. The expressions for Johnson noise and thermal fluctuation noise are derived. The calculated results are in close agreement with measurements, provided that one of the parameters used is adjusted. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
University of Michigan, Ann Arbor, MI USA |
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
|
Approved |
no |
Call Number |
|
Serial ![sorted by Serial field, descending order (down)](img/sort_desc.gif) |
893 |
Permanent link to this record |
|
|
|
Author |
Гершензон, Е. М.; Гольцман, Г. Н.; Елантьев, А. И.; Карасик, Б. С.; Потоскуев, С. Э. |
Title |
Разогрев электронов в резистивном состоянии сверхпроводника электромагнитным излучением значительной интенсивности |
Type |
Journal Article |
Year |
1988 |
Publication |
Физика низких температур |
Abbreviated Journal |
Физика низких температур |
Volume |
14 |
Issue |
7 |
Pages |
753-763 |
Keywords |
HEB |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes |
Duplicated as 1697 |
Approved |
no |
Call Number |
|
Serial ![sorted by Serial field, descending order (down)](img/sort_desc.gif) |
883 |
Permanent link to this record |