Energy Gap Measurements by Tunneling Between Superconducting Films. I. Temperature Dependence

1964 ◽  
Vol 135 (1A) ◽  
pp. A19-A23 ◽  
Author(s):  
D. H. Douglass ◽  
R. Meservey
Keyword(s):  
Temperature Dependence ◽  
Energy Gap ◽  
Superconducting Films

Temperature dependence of the electron energy gap of highTCsuperconductors studied by work function spectroscopy

1994 ◽  
Vol 64 (13) ◽  
pp. 1726-1728
Author(s):  
S. Westermeyr ◽  
R. Müller ◽  
J. Scholtes ◽  
H. Oechsner
Keyword(s):  
Temperature Dependence ◽  
Work Function ◽  
Electron Energy ◽  
Energy Gap

Temperature Dependence of Optical Energy Gap of Gallium Selenide

2001 ◽  
Vol 8 (3-4) ◽  
pp. 251-259 ◽  
Author(s):  
M. Kepinska ◽  
M. Nowak ◽  
Z. Kovalyuk ◽  
R. Murri
Keyword(s):  
Temperature Dependence ◽  
Energy Gap ◽  
Gallium Selenide ◽  
Optical Energy Gap ◽  
Optical Energy

Determination of Density of Localized States in Amorphous Silicon Alloys From the Low Field Conductance of Thin N-I-N Diodes

1985 ◽  
Vol 49 ◽  
Author(s):  
Michael Shur ◽  
Michael Hack
Keyword(s):  
Temperature Dependence ◽  
Amorphous Silicon ◽  
Bulk Density ◽  
Density Of States ◽  
Energy Gap ◽  
Localized States ◽  
New Technique ◽  
Silicon Alloys ◽  
Low Field ◽  
Density Of Localized States

AbstractWe describe a new technique to determine the bulk density of localized states in the energy gap of amorphous silicon alloys from the temperature dependence of the low field conductance of n-i-n diodes. This new technique allows us to determine the bulk density of states in the centre of a device, and is very straightforward, involving fewer assumptions than other established techniques. Varying the intrinsic layer thickness allows us to measure the,density of states within approximately 400 meV of midgap.We measured the temperature dependence of the low field conductance of an amorphous silicon alloy n-i-n diode with an intrinsic layer thjckness of 0.45 microns and deduced the density of localised states to be 3xlO16cm−3 eV−1 at approximately 0.5 eV below the bottom of the conduction band. We have also considered the high bias region (the space charge limited current regime) and proposed an interpolation formula which describes the current-voltage characteristics of these structures at all biases and agrees well with our computer simulation based on the solution of the complete system of transport equations.

The temperature dependence of the spin - Peierls energy gap in

1996 ◽  
Vol 8 (4) ◽  
pp. L59-L64 ◽  
Author(s):  
J-G Lussier ◽  
S M Coad ◽  
D F McMorrow ◽  
D McK Paul
Keyword(s):  
Temperature Dependence ◽  
Energy Gap

Temperature Dependence of the Energy Gap of Semiconductors in the Low-Temperature Limit

2004 ◽  
Vol 92 (19) ◽  
Author(s):  
Manuel Cardona ◽  
T. A. Meyer ◽  
M. L. W. Thewalt
Keyword(s):  
Low Temperature ◽  
Temperature Dependence ◽  
Energy Gap ◽  
Temperature Limit

The Response of Two-Dimensional Granular Superconducting Films to Light

1990 ◽  
Vol 195 ◽  
Author(s):  
J. C. Culbertson ◽  
U. Strom ◽  
S. A. Wolf
Keyword(s):  
Low Temperature ◽  
Photon Energy ◽  
Energy Gap ◽  
Superconducting Films ◽  
Excitation Power ◽  
Bias Current ◽  
Two Dimensional ◽  
Superconducting Energy Gap

ABSTRACTWe have examined the photoresponse of two-dimensional granular superconducting films of high Tc superconductors (Y-Ba-Cu-O). We see evidence for the existence of a twodimensional Kosterlitz-Thouless transition. The photoresponse and resistance have been measured as a functions of temperature, excitation power, bias current, and photon energy. The response to photons having energies above and below the superconducting energy gap(s) has been measured. Photoresponse features have been observed that are not explainable in terms of a conventional phonon bolometric mechanism. Comparison will be made with similar observations made on low temperature superconducting films (NbN-BN).

Temperature dependence of the energy gap, refractive index and optical-oscillator parameters of amorphous GaxSe1-x (x = 0.4, 0.5, 0.6) thin films

2009 ◽  
Vol 6 (S1) ◽  
pp. S135-S138 ◽  
Author(s):  
Falah I. Mustafa ◽  
Shikha Gupta ◽  
N. Goyal ◽  
S. K. Tripathi
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Temperature Dependence ◽  
Energy Gap

Temperature dependence of the YBa2Cu3O7 energy gap in differently oriented tunnel junctions

2001 ◽  
Vol 24 (3) ◽  
pp. 305-308 ◽  
Author(s):  
F. Giubileo ◽  
A. Jossa ◽  
F. Bobba ◽  
A.I. Akimenko ◽  
A.M. Cucolo
Keyword(s):  
Temperature Dependence ◽  
Energy Gap ◽  
Tunnel Junctions
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