High pressure structural change and superconductivity in jacutingaite

The result of our collaboration with the group of Prof. Yanpeng Qi at ShanghaiTech University has just been published in npj Quantum Materials. Our work reveals that Pt2HgSe3 (jacutingaite) transforms to a monoclinic structure (space group Pc), above 55 GPa and at the same time becomes a superconductor.

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Crumpled graphene

Visible plasmons in ultra-corrugated graphene

In our recent paper published in Nature Nanotechnology, we show that the plasmon frequencies of graphene can be tuned from terahertz frequencies into the visible range. This enables extremely sensitive detection of molecules from femtomolar concentrations by Raman spectroscopy.

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Our paper on Pt2HgSe3 has been published in Nano Letters

Pt2HgSe3 is a layered, van der Waals mineral, called jacutingaite. It was discovered in 2008 in Brazil [1] and the monolayer has been predicted to be a large gap topological insulator [2]. Our group has been able to detect signatures of the predicted topological edge states, within a bulk gap that is larger than 100 […]

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Intra-valley scattering in crumpled graphene

Our paper on intra-valley scattering on strain-induced pseudo-magnetic field fluctuations has been published. Kun, P. et al. Large intravalley scattering due to pseudo-magnetic fields in crumpled graphene. npj 2D Mater. Appl. 3, 11 (2019).

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