Analysis of the high‐field domain dynamics in a planar Gunn diode by using a stroboscopic SEM

1979 ◽  
Vol 50 (1) ◽  
pp. 530-536 ◽  
Author(s):  
Masamitsu Masuda ◽  
Takeshi Ogura ◽  
Jiro Koyama ◽  
Hiromu Fujioka ◽  
Teruo Hosokawa ◽  
...  
Keyword(s):  
High Field ◽  
Gunn Diode ◽  
Domain Dynamics

Domain dynamics in a Gunn diode inserted in a resistive circuit

2001 ◽  
Vol 46 (4) ◽  
pp. 422-426 ◽  
Author(s):  
S. I. Domrachev ◽  
A. A. Kuznetsov
Keyword(s):  
Gunn Diode ◽  
Domain Dynamics

Fluctuations in Drift Velocity of High-Field Domains in n-GaAs

1972 ◽  
Vol 50 (6) ◽  
pp. 617-618
Author(s):  
L. G. Hart
Keyword(s):  
Monte Carlo ◽  
Drift Velocity ◽  
Frequency Modulation ◽  
High Field ◽  
Gunn Diode ◽  
Accumulation Layer ◽  
Transport Studies ◽  
Free Running

A source of frequency-modulation (FM) noise in a free-running Gunn diode, due to fluctuations in valley population in the accumulation layer, is investigated using the results of recent Monte-Carlo high-field transport studies.

Electro−optic modulation of a laser beam by a traveling high−field domain in a GaAs Gunn diode

1975 ◽  
Vol 46 (3) ◽  
pp. 1318-1321 ◽  
Author(s):  
Kimihiro Ohta ◽  
Mitsuo Kawashima ◽  
Shoei Kataoka
Keyword(s):  
Laser Beam ◽  
High Field ◽  
Gunn Diode ◽  
Electro Optic

scholarly journals An Algorithm to Develop Lumped Model for Gunn-Diode Dynamics

1998 ◽  
Vol 21 (1) ◽  
pp. 17-21
Author(s):  
Umesh Kumar
Keyword(s):  
Drift Velocity ◽  
Nonlinear Diffusion ◽  
High Field ◽  
Gunn Diode ◽  
Lumped Model ◽  
Gunn Diodes ◽  
Diffusion Effects

A nonlinear lumped model can be developed for Gunn-Diodes to describe the diffusion effects as the domain travels from cathode to anode of a Gunn-Diode. The model describes the domain extinction and nucleation phenomena. It allows the user to specify arbitrary nonlinear drift velocity V(E) and nonlinear diffusion D(E).The model simulates arbitrary Gunn-Diode circuits operating in any matured high field domain or in the LSA mode.Here we have constructed an algorithm to lead to development of this model

Relation between the domain dynamics and the shape of the cathode “notch” in a Gunn diode

1998 ◽  
Vol 24 (11) ◽  
pp. 836-838 ◽  
Author(s):  
A. I. Mikhailov ◽  
D. M. Lerner
Keyword(s):  
Gunn Diode ◽  
Domain Dynamics

Study of segregation in La1.8Sr0.2CuO4 superconductor by STEM-EDS microanalysis

1987 ◽  
Vol 45 ◽  
pp. 54-55
Author(s):  
T. F. Kelly ◽  
P. J. Lee ◽  
E. E. Hellstrom ◽  
D. C. Larbalestier
Keyword(s):  
Rare Earth ◽  
High Field ◽  
Transport Current ◽  
Total Thickness ◽  
New Class ◽  
Ceramic Superconductors ◽  
Current Densities ◽  
Group Ii ◽  
Eds Microanalysis

Recently there has been much excitement over a new class of high Tc (>30 K) ceramic superconductors of the form A1-xBxCuO4-x, where A is a rare earth and B is from Group II. Unfortunately these materials have only been able to support small transport current densities 1-10 A/cm2. It is very desirable to increase these values by 2 to 3 orders of magnitude for useful high field applications. The reason for these small transport currents is as yet unknown. Evidence has, however, been presented for superconducting clusters on a 50-100 nm scale and on a 1-3 μm scale. We therefore planned a detailed TEM and STEM microanalysis study in order to see whether any evidence for the clusters could be seen.A La1.8Sr0.2Cu04 pellet was cut into 1 mm thick slices from which 3 mm discs were cut. The discs were subsequently mechanically ground to 100 μm total thickness and dimpled to 20 μm thickness at the center.

High-field magnetoluminescence of ZnSe quantum wires

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 339-342 ◽  
Author(s):  
L Parthier
Keyword(s):  
High Field ◽  
Quantum Wires

HIGH FIELD N. M. R. IN Cu(NO3)2 2 1/2 H2O BELOW 1°K

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-943-C1-945
Author(s):  
M. W. van TOL ◽  
M. MATSUURA ◽  
N. J. POULIS
Keyword(s):  
High Field

HIGH FIELD MAGNETISM OF THE INTERMETALLIC COMPOUNDS RAg AND RCu (R = Dy, Tb AND Gd)

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-393-C8-394 ◽  
Author(s):  
S. Miura ◽  
T. Kaneko ◽  
S. Abe ◽  
G. Kido ◽  
H. Yoshida ◽  
...  
Keyword(s):  
Intermetallic Compounds ◽  
High Field
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