The phonon spectrum of a normal-state tunnel junction

1996 ◽  
Vol 219-220 ◽  
pp. 766-769 ◽  
Author(s):  
U. Wenschuh ◽  
W. Dietsche
Keyword(s):  
Tunnel Junction ◽  
Normal State ◽  
Phonon Spectrum

Normal-state tunnel junction as a tunable quasimonochromatic phonon source

1994 ◽  
Vol 50 (12) ◽  
pp. 8352-8357 ◽  
Author(s):  
J. Cooper ◽  
S. Roshko ◽  
W. Dietsche ◽  
Y. Kershaw ◽  
U. Wenschuh
Keyword(s):  
Tunnel Junction ◽  
Normal State

Reliability of normal-state current–voltage characteristics as an indicator of tunnel-junction barrier quality

2000 ◽  
Vol 77 (12) ◽  
pp. 1870 ◽  
Author(s):  
B. J. Jönsson-Åkerman ◽  
R. Escudero ◽  
C. Leighton ◽  
S. Kim ◽  
Ivan K. Schuller ◽  
...  
Keyword(s):  
Tunnel Junction ◽  
Normal State ◽  
Current Voltage ◽  
Current Voltage Characteristics

scholarly journals Сверхпроводящий источник шума для сверхнизких температур

2021 ◽  
Vol 47 (24) ◽  
pp. 13
Author(s):  
Т.М. Ким ◽  
С.В. Шитов
Keyword(s):  
Direct Current ◽  
Shot Noise ◽  
Tunnel Junction ◽  
Normal State ◽  
Coplanar Waveguide ◽  
Heating Power ◽  
Temperature Modulation ◽  
Frequency Range

The device operates at temperatures <300 mK and comprises a hafnium microbridge and a superconducting aluminum tunnel junction both integrated into a common coplanar waveguide. The microbridge is a thermodynamic source and operates as an optical blackbody at frequencies 600–700 GHz. The coplanar terminal is the blackbody output in the 1–2 GHz frequency range. The microbridge temperature can be set in the range of 0.4–9 K and calibrated using the shot noise of the tunnel junction. Activation and temperature modulation of each of the sources can be performed independently using a direct current which transit them from the superconducting to the normal state with characteristic times <0.1 ms and heating power <1 μW.

NON-EQUILIBRIUM IN JOSEPHSON JUNCTIONS: POSSIBLE TRANSISTOR-LIKE APPLICATIONS

2000 ◽  
Vol 14 (25n27) ◽  
pp. 3038-3043 ◽  
Author(s):  
G. P. PEPE ◽  
L. PARLATO ◽  
G. AMMENDOLA ◽  
E. ESPOSITO ◽  
G. GRIECO ◽  
...  
Keyword(s):  
Tunnel Junction ◽  
Normal State ◽  
Low Temperatures ◽  
Current Gain ◽  
Large Current ◽  
Potential Benefits ◽  
Metal State ◽  
Current Amplification ◽  
Junction Structure ◽  
Quasiparticle Trapping

Interest in superconducting transistors is due to some potential benefits of these devices, such as the possibility to have large current gain and bandwidth at low temperatures. In this work we present experimental results concerning with a new superconducting 3-terminal device showing true transistor-like properties at T=4.2K. It is a stacked double tunnel junction structure where the intermediate film is a bilayer of superconducting Nb with an Al quasiparticle trap which can be either in the superconducting or in the normal metal state. Current amplification factors of up to 2.0 are observed at a temperature of 4.2 K when the Al is superconducting. When the Al is in the normal state, large current gains of more than 50 are observed. The operation is highly directional, i.e. practically no effect is observed when the roles of the injector and detector junctions are reversed. The results are explained according to the recently proposed QUAsiparticle TRApping TRANnsistor model.

PARAMETERS OF A JOSEPHSON TUNNEL JUNCTION ARRAY PARAMETRIC AMPLIFIER

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-1234-C6-1235 ◽  
Author(s):  
T. Claeson ◽  
S. Rudner ◽  
S. Wahlsten
Keyword(s):  
Tunnel Junction ◽  
Parametric Amplifier ◽  
Josephson Tunnel ◽  
Junction Array

A SIMPLE QUALITATIVE DETERMINATION OF JOSEPHSON TUNNEL JUNCTION PARAMETERS NEAR THE TRANSITION TEMPERATURE

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-1232-C6-1233 ◽  
Author(s):  
N. F. Pedersen ◽  
J. Mygind ◽  
O. H. Soerensen ◽  
B. Dueholm
Keyword(s):  
Transition Temperature ◽  
Tunnel Junction ◽  
Josephson Tunnel ◽  
Qualitative Determination

LOW-FREQUENCY PHONON SPECTRUM PECULIARITIES OF Sn-Pb ALLOYS

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-1037-C6-1038
Author(s):  
V.M. Pan ◽  
B.G. Nikitin ◽  
A.M. Korostil ◽  
V.V. Nemoshkalenko ◽  
V.P. Dovgopol ◽  
...  
Keyword(s):  
Phonon Spectrum ◽  
Low Frequency

The Annealing Effect of Spin-Valve-Like Ferromagnetic Tunnel Junction

1999 ◽  
Vol 23 (1_2) ◽  
pp. 49-51 ◽  
Author(s):  
H. Kikuchi ◽  
K. Kobayashi ◽  
M. Sato
Keyword(s):  
Tunnel Junction ◽  
Spin Valve ◽  
Annealing Effect

Phonon Spectrum of Crystals InxTl1 – xI Substitutional Solid Solutions

2016 ◽  
Vol 8 (1) ◽  
pp. 01010-1-01010-5 ◽  
Author(s):  
A. I. Kashuba ◽  
◽  
S. V. Apunevych ◽  
Keyword(s):  
Solid Solutions ◽  
Phonon Spectrum ◽  
Substitutional Solid Solutions
Sign in / Sign up

Export Citation Format

Share Document