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Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b03981
Abstract: Crossed Andreev reflection (CAR) is a nonlocal process that converts an incoming electron (hole) from one normal electrode to an out-going hole (electron) in another normal electrode through a superconductor (SC). CAR corresponds to the…
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Keywords:
bilayer graphene;
double bilayer;
crossed andreev;
andreev reflection ... See more keywords
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Published in 2020 at "Nanoscale"
DOI: 10.1039/c9nr10830k
Abstract: We present electronic structure calculations of twisted double bilayer graphene (TDBG): a tetralayer graphene structure composed of two AB-stacked graphene bilayers with a relative rotation angle between them. Using first-principles calculations, we find that TDBG…
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Keywords:
bilayer graphene;
twisted double;
graphene;
flat bands ... See more keywords
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Published in 2021 at "2D Materials"
DOI: 10.1088/2053-1583/ac33c2
Abstract: The rich and electrostatically tunable phase diagram exhibited by moiré materials has made them a suitable platform for hosting single material, multi-purpose devices. To engineer such devices, understanding electronic transport and localization across electrostatically defined…
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Keywords:
bilayer graphene;
twisted double;
fabry rot;
defined interfaces ... See more keywords
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Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.115123
Abstract: In this paper, the electronic properties of 30° twisted double bilayer graphene, which loses the translational symmetry due to the incommensurate twist angle, are studied by means of the tight-binding approximation. We demonstrate the interlayer…
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Keywords:
bilayer graphene;
twisted double;
graphene;
double bilayer ... See more keywords
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Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.036601
Abstract: Coupled 2D sheets of electrons and holes are predicted to support novel quantum phases. Two experiments of Coulomb drag in electron-hole (e-h) double bilayer graphene (DBLG) have reported an unexplained and puzzling sign reversal of…
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Keywords:
coulomb drag;
bilayer graphene;
sign reversal;
double bilayer ... See more keywords
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Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.197702
Abstract: We present a combined experimental and theoretical study of twisted double bilayer graphene with twist angles between 1° and 1.35°. Consistent with moiré band structure calculations, we observe insulators at integer moiré band fillings one…
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Keywords:
bilayer graphene;
twisted double;
band;
double bilayer ... See more keywords
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Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.057702
Abstract: A unique feature of the complex band structures of moiré materials is the presence of minivalleys, their hybridization, and scattering between them. Here, we investigate magnetotransport oscillations caused by scattering between minivalleys-a phenomenon analogous to…
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Keywords:
bilayer graphene;
double bilayer;
scattering minivalleys;
twisted double ... See more keywords
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Published in 2019 at "Crystals"
DOI: 10.3390/cryst9050266
Abstract: The transformations of the topological phase and the edge modes of a double-bilayer bismuthene were investigated with first-principles calculations and Green’s function as the inter-bilayer spacing increased from 0 Å to 10 Å. At a…
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Keywords:
bilayer bismuthene;
bilayer;
edge modes;
double bilayer ... See more keywords