Effects of collision retardation on hot-electron transport in a two-dimensional electron gas

1993 ◽  
Vol 47 (15) ◽  
pp. 9900-9902 ◽  
Author(s):  
N. Telang ◽  
S. Bandyopadhyay
Keyword(s):  
Electron Transport ◽  
Electron Gas ◽  
Two Dimensional ◽  
Hot Electron ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Hot Electron Transport

ELECTRON TRANSPORT IN A NANOSTRUCTURE PERIODICALLY MODULATED BY FERROMAGNETIC AND SCHOTTKY METAL STRIPES

2011 ◽  
Vol 25 (18) ◽  
pp. 1529-1536 ◽  
Author(s):  
JIAN-DUO LU ◽  
HONG-YU LIU ◽  
YUN-BAO LI ◽  
MEI-JUAN YUN ◽  
WEI ZHENG
Keyword(s):  
Electron Transport ◽  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas

The spin-dependent electron transport is theoretically investigated in a two-dimensional electron gas, which is periodically modulated by ferromagnetic and Schottky metal (SM) stripes. We find that the spin-dependent transmission and conductance as well as polarization strongly depend on the number of periods. We also find that the transmission and the polarization of transmitted beams periodically change with increasing the width of the SM stripe.

SPIN-DEPENDENT ELECTRON TRANSPORT IN A QUANTUM WIRE WITH FINITE WIDTH MODULATED BY MAGNETIC-ELECTRIC BARRIERS

2012 ◽  
Vol 26 (26) ◽  
pp. 1250138
Author(s):  
JIAN-DUO LU ◽  
BIN XU ◽  
WEI ZHENG
Keyword(s):  
Electron Transport ◽  
Quantum Wire ◽  
Electron Gas ◽  
Transmission Probability ◽  
Finite Width ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Electric Barrier

We theoretically present the spin-dependent electron transport in a two-dimensional electron gas (2DEG) with finite width modulated by magnetic–electric barriers. It is found that the transmission probability and the spin polarization are strongly dependent on the height of the electric barrier, the energy of the incident electron, the distance between the two magnetic fields, and the width of the 2DEG. These may be useful for making the practical devices.

VOLTAGE-TUNABLE SPIN POLARIZATION OF TWO-DIMENSIONAL ELECTRON GAS IN FERROMAGNETIC/SEMICONDUCTOR HYBRID NANOSYSTEM

2006 ◽  
Vol 13 (05) ◽  
pp. 599-605
Author(s):  
MAOWANG LU
Keyword(s):  
Electron Transport ◽  
Applied Voltage ◽  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Alternative Scheme ◽  
Spin Polarized ◽  
Dimensional Electron Gas ◽  
Hybrid Nanosystem

The spin-dependent electron transport in a two-dimensional electron gas (2DEG) modulated by a stripe of magnetized ferromagnetic metal under an applied voltage was investigated theoretically. It is revealed that highly spin-polarized current can be achieved in this kind of nanosystems. It is also shown that the spin polarity of the electron transport can be switched by adjusting the applied voltage to the stripe in the device. These interesting properties may provide an alternative scheme to spin polarize electrons into semiconductors, and this device may be used as a voltage-tunable spin filter.

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