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Title: Quantum confinement of a hydrogenic donor in a double quantum well: Through diamagnetic susceptibility

Diamagnetic susceptibility of a randomly distributed donor in a GaAs/Al{sub 0.3}Ga{sub 0.7}As Double Quantum Well has been calculated in its ground state as a function of barrier and well width. It is shown that the modification in the barrier and well dimension significantly influences the dimensional character of the donor through modulating the subband distribution and in turn the localization of the donor. The effect of barrier and well thickness on the interparticle distance has also been observed. Interestingly it opens up the possibility of tuning the susceptibility and monitoring the tunnel coupling among the wells.
Authors:
;  [1]
  1. Nanostructure Lab, Department of Physics, Gandhigram Rural University, Gandhigram, Tamilnadu (India)
Publication Date:
OSTI Identifier:
22490245
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM COMPOUNDS; CONFINEMENT; COUPLING; DIAMAGNETISM; GALLIUM ARSENIDES; GROUND STATES; MAGNETIC SUSCEPTIBILITY; MODIFICATIONS; MONITORING; QUANTUM WELLS; RANDOMNESS