Abstract

Upping the pressure in bilayer graphene The discovery of superconductivity and exotic insulating phases in twisted bilayer graphene has established this material as a model system of strongly correlated electrons. To achieve superconductivity, the two layers of graphene need to be at a very precise angle with respect to each other. Yankowitz et al. now show that another experimental knob, hydrostatic pressure, can be used to tune the phase diagram of twisted bilayer graphene (see the Perspective by Feldman). Applying pressure increased the coupling between the layers, which shifted the superconducting transition to higher angles and somewhat higher temperatures. Science , this issue p. 1059 ; see also p. 1035

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Year
2019
Type
article
Volume
363
Issue
6431
Pages
1059-1064
Citations
2030
Access
Closed

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Matthew Yankowitz, Shaowen Chen, Hryhoriy Polshyn et al. (2019). Tuning superconductivity in twisted bilayer graphene. Science , 363 (6431) , 1059-1064. https://doi.org/10.1126/science.aav1910

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DOI
10.1126/science.aav1910