Quantum conductance fluctuations in the large-size-scale regime

1996 ◽  
Vol 53 (19) ◽  
pp. 13086-13090
Author(s):  
C. A. Richter ◽  
D. G. Seiler ◽  
J. G. Pellegrino
Keyword(s):  
Quantum Conductance ◽  
Size Scale ◽  
Large Size ◽  
Conductance Fluctuations

scholarly journals Quantum conductance fluctuations in 3d ballistic adiabatic wires

1992 ◽  
Vol 84 (8) ◽  
pp. 835-837 ◽  
Author(s):  
Vladimir I. Fal'ko ◽  
G.B. Lesovik
Keyword(s):  
Quantum Conductance ◽  
Conductance Fluctuations

Quantum conductance fluctuations and classical short-path dynamics

1995 ◽  
Vol 51 (3) ◽  
pp. 2013-2016 ◽  
Author(s):  
Hiromu Ishio ◽  
Joachim Burgdörfer
Keyword(s):  
Short Path ◽  
Quantum Conductance ◽  
Conductance Fluctuations

Quantum conductance fluctuations in semiconductor devices

2008 ◽  
Vol 8 (3-4) ◽  
pp. 332-335 ◽  
Author(s):  
B.C. Scannell ◽  
T.P. Martin ◽  
M.S. Fairbanks ◽  
H. Linke ◽  
C.A. Marlow ◽  
...  
Keyword(s):  
Semiconductor Devices ◽  
Quantum Conductance ◽  
Conductance Fluctuations

Location of Initial Debonding and Stress Singularity at Interface End

2008 ◽  
Vol 33-37 ◽  
pp. 315-320
Author(s):  
Ying Dai ◽  
Li Lang Zhou ◽  
Li Juan Fu ◽  
Xing Ji
Keyword(s):  
Stress Distribution ◽  
Characteristic Length ◽  
Stress Singularity ◽  
Interfacial Stress ◽  
Length Scale ◽  
Test Results ◽  
Characteristic Length Scale ◽  
Concentrated Force ◽  
Size Scale ◽  
Large Size

Interfacial stress distribution of bonded quarter-planes subjected to a concentrated force was re-investigated based on Bogy’s solution[1]. The characteristic length of the singular interface end, δ, was defined, and found varying in a very large size scale with the index of stress singularity from millimeter to nanometer or even smaller scale. The influences the characteristic length scale on the initial debonding of the interface end is a new question worth to pay attention. Photoelasticity experiment was employed to verify whether the initial debonding is always located at interface end with stress singularity. The test results show that the initial debonding does not start from singular interface end if the index of stress singularity is small enough.

Coherency loss in γ' precipitates in nickel-base superalloy

1983 ◽  
Vol 41 ◽  
pp. 244-245
Author(s):  
R. A. Ricks ◽  
Angus J. Porter
Keyword(s):  
Lattice Mismatch ◽  
Lattice Parameter ◽  
Nickel Base Superalloy ◽  
Large Size ◽  
The Matrix ◽  
Nimonic 80A ◽  
Interfacial Dislocations ◽  
Nickel Base ◽  
Coherency Loss ◽  
Nimonic 115

During a recent investigation concerning the growth of γ' precipitates in nickel-base superalloys it was observed that the sign of the lattice mismatch between the coherent particles and the matrix (γ) was important in determining the ease with which matrix dislocations could be incorporated into the interface to relieve coherency strains. Thus alloys with a negative misfit (ie. the γ' lattice parameter was smaller than the matrix) could lose coherency easily and γ/γ' interfaces would exhibit regularly spaced networks of dislocations, as shown in figure 1 for the case of Nimonic 115 (misfit = -0.15%). In contrast, γ' particles in alloys with a positive misfit could grow to a large size and not show any such dislocation arrangements in the interface, thus indicating that coherency had not been lost. Figure 2 depicts a large γ' precipitate in Nimonic 80A (misfit = +0.32%) showing few interfacial dislocations.

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