Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Lucian Covaci"'
Autor:
Simão M. João, Miša Anđelković, Lucian Covaci, Tatiana G. Rappoport, João M. V. P. Lopes, Aires Ferreira
Publikováno v:
Royal Society Open Science, Vol 7, Iss 2 (2020)
We present KITE, a general purpose open-source tight-binding software for accurate real-space simulations of electronic structure and quantum transport properties of large-scale molecular and condensed systems with tens of billions of atomic orbitals
Externí odkaz:
https://doaj.org/article/d2d0758330cc49ebb43c27c71bdbbac2
Publikováno v:
SciPost Physics Core, Vol 7, Iss 1, p 004 (2024)
We provide a comprehensive analysis of the prominent tight-binding (TB) models for transition metal dichalcogenides (TMDs) available in the literature. We inspect the construction of these TB models, discuss their parameterization used and conduct a
Externí odkaz:
https://doaj.org/article/672954bc76e040b083608541e9d0d94c
Publikováno v:
Nanoscale
When using hexagonal boron-nitride (hBN) as a substrate for graphene, the resulting moir\'e pattern creates secondary Dirac points. By encapsulating a multilayer graphene within aligned hBN sheets the controlled moir\'e stacking may offer even richer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b24de9fe1c6bb9ff7e6bc9c96f1b582e
http://arxiv.org/abs/2211.16351
http://arxiv.org/abs/2211.16351
Publikováno v:
Nano letters
A periodic spatial modulation, as created by a moir\'e pattern, has been extensively studied with the view to engineer and tune the properties of graphene. Graphene encapsulated by hexagonal boron nitride (hBN) when slightly misaligned with the top a
Autor:
Lucian Covaci, Nasim Hassani, Steven Brems, Erik C. Neyts, Stefan De Gendt, Hans C. Hofsaess, Felix Junge, Renan Villarreal, E. Harriet Åhlgren, Steven De Feyter, Fahim Faraji, Hung-Chieh Tsai, Manuel Auge, L. M. C. Pereira, Zviadi Zarkua, Maya N. Nair, Pin-Cheng Lin, Harsh Bana, François M. Peeters, Mehdi Neek-Amal
Publikováno v:
Nano letters
We report the formation of nanobubbles on graphene with a radius of the order of 1 nm, using ultralow energy implantation of noble gas ions (He, Ne, Ar) into graphene grown on a Pt(111) surface. We show that the universal scaling of the aspect ratio,
Autor:
D. R. da Costa, François M. Peeters, Lucian Covaci, I. R. Lavor, Milorad V. Milošević, Andrey Chaves
Publikováno v:
Physical Review Letters. 127
The moir\'e pattern observed in stacked noncommensurate crystal lattices, such as heterobilayers of transition metal dichalcogenides, produces a periodic modulation of their band gap. Excitons subjected to this potential landscape exhibit a band stru
Publikováno v:
Physical review B
We examine from first principles the flexoelectric properties of phosphorene nanoribbons under mechanical bending along armchair and zigzag directions. In both cases we find that the radial polarization depends linearly on the strain gradient. The fl
Publikováno v:
Carbon
The flexoelectric and electronic properties of zig-zag graphene nanoribbons are explored under mechanical bending using state of the art first principles calculations. A linear dependence of the bending induced out of plane polarization on the applie
Publikováno v:
2D materials
A twin boundary in one of the layers of a twisted van der Waals heterostructure separates regions with near opposite inter-layer twist angles. In a MoS2/WSe2 bilayer, the regions with R h h and R h X stacking registry that defined the sub-lattices of
Autor:
Lucian Covaci, S. P. Milovanović, Jinhai Mao, Andre K. Geim, Yang Cao, Eva Y. Andrei, François M. Peeters, Kenji Watanabe, Miša Anđelković, Xinyuan Lai, Yuhang Jiang, Takashi Taniguchi
Publikováno v:
Nature
Two-dimensional atomic crystals can radically change their properties in response to external influences such as substrate orientation or strain, resulting in essentially new materials in terms of the electronic structure. A striking example is the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b24bbc7a0882dfba6c075a6d8330607e
http://arxiv.org/abs/2006.01660
http://arxiv.org/abs/2006.01660