# Interaction-driven quantum Hall wedding cake–like structures in graphene quantum dots

@article{Gutirrez2018InteractiondrivenQH, title={Interaction-driven quantum Hall wedding cake–like structures in graphene quantum dots}, author={Christopher Guti{\'e}rrez and Daniel Walkup and Fereshte Ghahari and Cyprian Lewandowski and Joaquin F. Rodriguez-Nieva and Kenji Watanabe and Takashi Taniguchi and Leonid S. Levitov and Nikolai B. Zhitenev and Joseph A. Stroscio}, journal={Science}, year={2018}, volume={361}, pages={789 - 794} }

An electronic wedding cake In nanostructures such as quantum dots, spatial confinement forces electrons to assume discrete energy levels. Quantization can also occur in an external magnetic field, where electrons' energies group into so-called Landau levels (LLs). Gutiérrez et al. explored the interplay between these two mechanisms and electronic interactions in a circulator resonator made of graphene. As an external magnetic field was increased, the electron quantum states transformed from…

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