Electron Focusing and Interactions in One Dimension

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QUEST Center event
Michael Pepper (University College London)
14/12/2016 - 12:30
Resnick (#209) - room 210

We have previously demonstrated that as the 1D confinement potential is weakened the electron wavefunctions relax in the second dimension and can form a two-row system, we now show that a zig-zag formation can be observed in electron focusing experiments. In a similar way we have investigated the dynamics of a strongly confined 1D electron gas and will show that a spin separation occurs. We present direct evidence that this spontaneous spin polarization is responsible for the 0.7 anomaly and can rule out other explanations.