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pro vyhledávání: '"Andrade, Elias"'
We analyze the electronic structure of twisted bilayer graphene (TBG) nanoribbons close to the magic angle. We describe a transition from an incomplete to a complete moir\'e structure. By considering zigzag and armchair edge terminations, the low-ene
Externí odkaz:
http://arxiv.org/abs/2309.06596
Flat-bands play a central role in the presence of correlated phases in Moir\'e and other modulated two dimensional systems. In this work, flat-bands are shown to exist in uniaxially periodic strained graphene. Such strain should be produced for examp
Externí odkaz:
http://arxiv.org/abs/2303.04262
In graphene, a Kekul\'e-Y bond texture modifies the electronic band structure generating two concentric Dirac cones with different Fermi velocities lying in the {\Gamma}-point in reciprocal space. The energy dispersion results in different group velo
Externí odkaz:
http://arxiv.org/abs/2208.02930
The effects of second-neighbor interactions in Kekule patterned graphene electronic properties are studied starting from a tight-binding Hamiltonian. Thereafter, a low-energy effective Hamiltonian is obtained by projecting the high energy bands at th
Externí odkaz:
http://arxiv.org/abs/2101.08853
The formation of a superlattice in graphene can serve as a way to modify its electronic bandstructure and thus to engineer its electronic transport properties. Recent experiments have discovered a Kekul\'e bond ordering in graphene deposited on top o
Externí odkaz:
http://arxiv.org/abs/1910.10338
Autor:
Ruiz-Tijerina, David A., Andrade, Elias, Carrillo-Bastos, Ramon, Mireles, Francisco, Naumis, Gerardo G.
Publikováno v:
Phys. Rev. B 100, 075431 (2019)
Graphene's electronic structure can be fundamentally altered when a substrate- or adatom-induced Kekul\'e superlattice couples the valley and isospin degrees of freedom. Here, we show that the band structure of Kekul\'e-textured graphene can be re-en
Externí odkaz:
http://arxiv.org/abs/1905.12810
Publikováno v:
Phys. Rev. B 99, 035411 (2019)
A Kekul\'e bond texture in graphene modifies the electronic band structure by folding the Brillouin zone and bringing the two inequivalent Dirac points to the center. This can result, in the opening of a gap (Kek-O) or the locking of the valley degre
Externí odkaz:
http://arxiv.org/abs/1810.09421
Autor:
Andrade, Elias Alves de
O presente trabalho constitui-se de estudos paleográficos e codicológicos de documentos manuscritos dos séculos XVIII e XIX - datados entre 1707 e 1822 -, referentes à Capitania de São Paulo, inicialmente, e, após, às Capitanias de Mato Grosso
Autor:
Andrade, Elias Sebastião de
Publikováno v:
Repositório Institucional da UFSCUniversidade Federal de Santa CatarinaUFSC.
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Externí odkaz:
https://repositorio.ufsc.br/handle/123456789/111700
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