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Alexandra Mestre-Torà on Muck Rack

Alexandra Mestre-Torà

As seen in: Nature, Physical Review B
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Articles

Quasiparticle and superfluid dynamics in Magic-Angle Graphene - Nature Communications

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By Elías Portolés, Pavel Volkov, Alexandra Mestre-Torà, Giulia Zheng, Artem Denisov, Takashi Taniguchi, Kenji Watanabe, J. H. Pixley, Thomas Ihn
| Nature Verified
Abstract Magic-Angle Twisted Bilayer Graphene (MATBG) shows a wide range of correlated phases which are electrostatically tunable. Despite a growing knowledge of the material, there is yet no consensus on the microscopic mechanisms driving its superconducting phase.
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Gate-defined superconducting channel in magic-angle twisted bilayer graphene

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By Giulia Zheng, Elías Portolés, Alexandra Mestre-Torà
| Physical Review B
Magic-angle twisted bilayer graphene (MATBG) combines in one single material different phases such as insulating, metallic, and superconducting. These phases and their in situ tunability make MATBG an important platform for the fabrication of superconducting devices. We realize a split-gate-defined geometry which enables us to tune the width of a superconducting channel formed in MATBG.
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Tunable quantum interferometer for correlated moiré electrons - Nature Communications

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By Shuichi Iwakiri, Elías Portolés, Giulia Zheng, Takashi Taniguchi, Kenji Watanabe, Manfred Sigrist, Thomas Ihn, Alexandra Mestre-Torà
| Nature Verified
Abstract Magic-angle twisted bilayer graphene can host a variety of gate-tunable correlated states – including superconducting and correlated insulator states. Recently, junction-based superconducting moiré devices have been introduced, enabling the study of the charge, spin and orbital nature of superconductivity, as well as the coherence of moiré electrons in magic-angle twisted bilayer graphene.
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