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21 papers · 1 filter
Impact of electrostatic fields in layered crystalline BCS superconductors
Luca Chirolli, Tommaso Cea, Francesco Giazotto
Motivated by recent experiments reporting the suppression of the critical current in superconducting Dayem bridges by the application of strong electrostatic fields, in this work w…
Heterostrain rules the flat-bands in magic-angle twisted graphene layers
F. Mesple, A. Missaoui, T. Cea +5
The moiré of twisted graphene bilayers can generate flat bands in which charge carriers do not posses enough kinetic energy to escape Coulomb interactions with each other leading t…
Flat bands, strains, and charge distribution in twisted-bilayer hBN
Niels R. Walet, Francisco Guinea
We study the effect of twisting on bilayer graphene. The effect of lattice relaxation is included; we look at the electronic structure, piezo-electric charges and spontaneous polar…
INFRA-ICE: an ultra-high vacuum experimental station for laboratory astrochemistry
Gonzalo Santoro, Jesús. M. Sobrado, Guillermo Tajuelo-Castilla +7
Laboratory astrochemistry aims at simulating in the laboratory some of the chemical and physical processes that operate in different regions of the Universe. Amongst the diverse as…
Direct observation of structural heterogeneity and tautomerization of single hypericin molecules
Quan Liu, Frank Wackenhut, Liangxuan Wang +6
Tautomerization is a fast chemical reaction where structures of the reactants differ only in the position of a proton and a double bond. Tautomerization often occurs in natural sub…
Tunable large Berry dipole in strained twisted bilayer graphene
Pierre A. Pantaleón, Tony Low, Francisco Guinea
Recent experiments have measured local uniaxial strain fields in twisted bilayer graphene (TBG). Our calculations found that the finite Berry curvature generated by breaking the su…