scholarly journals Condensation of two-dimensional oxide-interfacial charges into one-dimensional electron chains by the misfit-dislocation strain field

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
C.-P. Chang ◽  
M.-W. Chu ◽  
H. T. Jeng ◽  
S.-L. Cheng ◽  
J. G. Lin ◽  
...  
VLSI Design ◽  
1998 ◽  
Vol 8 (1-4) ◽  
pp. 489-493
Author(s):  
H. Kosina ◽  
C. Troger

Nonparabolicity effects in two-dimensional electron systems are quantitatively analyzed. A formalism has been developed which allows to incorporate a nonparabolic bulk dispersion relation into the Schrödinger equation. As a consequence of nonparabolicity the wave functions depend on the in-plane momentum. Each subband is parametrized by its energy, effective mass and a subband nonparabolicity coefficient. The formalism is implemented in a one-dimensional Schrödinger-Poisson solver which is applicable both to silicon inversion layers and heterostructures.


Author(s):  
Sul-Ah Park ◽  
Young-Woo Son ◽  
Kang-Hun Ahn

We reveal new stripe states in deformed hexagonal array of photonic wave guides when the array is terminated to have a ribbon-shaped geometry. Unlike the well-known zero energy edge modes of honeycomb ribbon, the new one-dimensional states are shown to originate from high-energy saddle-shaped photonic bands of the ribbon's two-dimensional counterpart. We find that the strain field deforming the ribbon generates pseudo-electric fields in contrast to pseudo-magnetic fields in other hexagonal crystals. Thus, the stripe states experience Bloch oscillation without any actual electric field so that the spatial distributions of stripes have a singular dependence on the strength of the field. The resulting stripe states are located inside the bulk and their positions depend on their energies.


2012 ◽  
Vol 85 (23) ◽  
Author(s):  
Sven S. Buchholz ◽  
Elmar Sternemann ◽  
Olivio Chiatti ◽  
Dirk Reuter ◽  
Andreas D. Wieck ◽  
...  

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