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Observation of a Well Defined Transition from Weak to Strong Localization in Two Dimensions

✍ Scribed by Hsu, Shih-Ying; Valles, Jr., J. M.


Book ID
126013812
Publisher
The American Physical Society
Year
1995
Tongue
English
Weight
268 KB
Volume
74
Category
Article
ISSN
0031-9007

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## Abstract A crossover from strongly localized behavior to weak localization (SL–WL) was observed in two‐dimensional modulation‐doped GaAs/Al~0.3~Ga~0.7~As structures as the impurity concentration increased. The low‐temperature dependence of the conductivity changed its character (from exponential