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Double Qdots Control Kondo Effect

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ATHENS, Ohio, Sept. 15, 2006 -- Two quantum dots connected by wires could help scientists better control the Kondo effect in experiments and could lead to a better understanding of structures such as superconductors, according to a new study. The Kondo effect occurs when electrons become trapped around the magnetic impurities in semiconductor materials, which prompts the electrons to change their spin. This phenomenon has intrigued scientists, as electronic correlations can create interesting and complex behavior in materials.Nanoscale metallic electrodes (in yellow) can be used to confine electrons in small regions,...Read full article

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