Visualization of space charge field effect on excitons in a GaAs quantum dot by near-field optical wavefunction mapping

2009 ◽  
Vol 16 (3) ◽  
pp. 269-273 ◽  
Author(s):  
Yoshiaki Sugimoto ◽  
Nobuhiro Tsumori ◽  
Shintaro Nomura ◽  
Toshiharu Saiki
Keyword(s):  
Quantum Dot ◽  
Space Charge ◽  
Field Effect ◽  
Near Field ◽  
Space Charge Field ◽  
Charge Field ◽  
Gaas Quantum Dot

scholarly journals Kombination von galvanomagnetischen- und Feldeffekt-Messungen an Germanium-Bikristallen

1965 ◽  
Vol 20 (12) ◽  
pp. 1599-1611
Author(s):  
G. Landwehr
Keyword(s):  
Space Charge ◽  
Field Effect ◽  
Reverse Bias ◽  
Hole Density ◽  
Reverse Bias Voltage ◽  
Space Charge Field ◽  
Boundary Field ◽  
Small Width ◽  
Charge Field ◽  
P Type

The transport properties in a magnetic field of the p-type space charge region adjacent to 20° tilt grain boundaries in n-type germanium bicrystals were investigated as a function of a reverse bias voltage between bulk and grain boundary (field effect). The average HALL mobility at 77°K of the holes decreased with increasing bias, demonstrating the existence of a size effect caused by diffuse boundary scattering in connection with the small width of the space charge layer. The results obtained for symmetrical bias are in agreement with a simplified theory based on a constant space charge field and allow to estimate an average hole density. The transverse magnetoresistance also decreased with increasing field effect-voltage, as expected.

The Effect of Radial Space Charge Field on the Acceleration of Electrons in a Slow Theta Pinch

1968 ◽  
Vol 25 (2) ◽  
pp. 649-649 ◽  
Author(s):  
H. Murata ◽  
T. Aizawa ◽  
H. Ohnishi ◽  
K. Sato ◽  
T. Miyamoto ◽  
...  
Keyword(s):  
Space Charge ◽  
Space Charge Field ◽  
Theta Pinch ◽  
Charge Field
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