Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
75 (1994), S. 320-324
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The low temperature current-voltage characteristics of a strongly coupled, short-period GaAs/Al0.33Ga0.67As superlattice structure have been studied with applied magnetic fields both parallel and perpendicular to the current flow. The complex dependence of the current-voltage characteristics on magnetic field perpendicular to the current flow is consistent with a simple model based on Bloch transport via the lowest miniband. From fits to the data the scattering time and mobility have been estimated as 0.15 ps and 4100 cm2/V s, respectively. Further evidence of negative-differential velocity associated with miniband transport comes from the observation of an extended negative-differential resistance region at room temperature in a structure with 50 superlattice repeats.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.355852
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