Classical magneto resistance of a two-dimensional electron gas constrained to non-planar topographies in antidot lattice under tilted magnetic field

2007 ◽  
Author(s):  
N. M. Sotomayor ◽  
L. A. Cabral ◽  
G. M. Gusev
Keyword(s):  
Magnetic Field ◽  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Magneto Resistance ◽  
Tilted Magnetic Field

A Shubnikov-De Haas Study of Tilted Magnetic Field in the HgTe/CdTe Superlattice

1994 ◽  
Vol 299 ◽  
Author(s):  
Ikai Lo ◽  
W. C. Mitchel ◽  
D. Boeringer ◽  
K.A. Harris ◽  
R.W. Yanka ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Temperature Dependence ◽  
Electrostatic Field ◽  
Electron Gas ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas ◽  
Tilted Magnetic Field

AbstractWe have measured the Shubnikov-de Haas (SdH) effect in a HgTe/CdTe superlattice (SL) with a tilted magnetic field in the absence of an external electric field. We found that the peaks of the SdH oscillation changed with Bcosθ, indicating the two-dimensional character of the electron gas. The carrier concentration of the two-dimensional electron gas (2DEG) is equal to 2.95×1011 cm−2. The 2DEG shows the existence of a Stark ladder, which is caused by the internal electrostatic field, near the interface between the substrate and the SL. From the temperature dependence of the SdH measurements, we also show that the 3DEG in the SL miniband contributes to the non-oscillatory magnetoresistance and that the mobility of 3DEG in the miniband is lower than that of 2DEG in the Stark ladder.

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