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arXiv · 2208.01032

Engineering SYK interactions in disordered graphene flakes under realistic experimental conditions

Marta Brzezinska·Yifei Guan·Oleg V. Yazyev·Subir Sachdev·Alexander Kruchkov
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Abstract

We model SYK (Sachdev-Ye-Kitaev) interactions in disordered graphene flakes up to 300 000 atoms ($\sim$100 nm in diameter) subjected to an out-of-plane magnetic field $B$ of 5-20 Tesla within the tight-binding formalism. We investigate two sources of disorder: (i) irregularities at the system boundaries, and (ii) bulk vacancies, -- for a combination of which we find conditions which could be favorable for the formation of the phase with SYK features under realistic experimental conditions above the liquid helium temperature.

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Marta Brzezinska, Yifei Guan, Oleg V. Yazyev, Subir Sachdev, Alexander Kruchkov. 2022-08-01. Engineering SYK interactions in disordered graphene flakes under realistic experimental conditions. https://doi.org/10.1103/physrevlett.131.036503

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