Publications by authors named "Hector Sainz-Cruz"
Article Synopsis
- The study investigates the elastic properties and low-energy physics of a sheared nanoribbon placed on graphene, which results in a changing moiré pattern.
- Using a classical elastic model, the researchers derive strains in the ribbon and its electronic energy spectrum through a tight-binding model.
- The findings suggest that this sheared nanoribbon setup is promising for exploring superconductivity and correlated phases in twisted bilayer graphene, particularly in conditions of low twist angle disorder.
Evolution of superconductivity in twisted graphene multilayers.
Proc Natl Acad Sci U S A
August 2024
The group of moiré graphene superconductors keeps growing, and by now it contains twisted graphene multilayers as well as untwisted stacks. We analyze here the contribution of long-range charge fluctuations in the superconductivity of twisted double bilayers and helical trilayers, and compare the results to twisted bilayer graphene. A diagrammatic approach which depends on a few, well-known parameters is used.
View Article and Find Full Text PDFJunctions provide a wealth of information on the symmetry of the order parameter of superconductors. We analyze junctions between a scanning tunneling microscope (STM) tip and superconducting twisted bilayer graphene (TBG) and TBG Josephson junctions (JJs). We compare superconducting phases that are even or odd under valley exchange (s- or f-wave).
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