Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Santos, Hernán"'
Autor:
Ares, Pablo, Santos, Hernan, Lazic, Snezana, Gibaja, Carlos, Torres, Inigo, Yanguas, Sergio Pinilla, Gomez-Herrero, Julio, van der Meulen, Herko P., Garcia-Gonzalez, Pablo, Zamora, Felix
Publikováno v:
Adv. Electron. Mater. 7, 2001177 (2021)
Hexagonal boron nitride (hBN) is attracting a lot of attention in the last years, thanks to its many remarkable properties. These include the presence of single-photon emitters with superior optical properties, which make it an ideal candidate for a
Externí odkaz:
http://arxiv.org/abs/2202.05636
Autor:
Rassekh, Maedeh, Santos, Hernán, Latge, Andrea, Chico, Leonor, Shayesteh, Saber Farjami, Palacios, Juan Jose
We present a methodology to address, from first principles, charge-spin interconversion in two-dimensional materials with spin-orbit coupling. Our study relies on an implementation of density functional theory based quantum transport formalism adapte
Externí odkaz:
http://arxiv.org/abs/2112.07559
Publikováno v:
Carbon 168, 1-11 (2020)
We investigate the production of spin-polarized currents in corrugated graphene nanoribbons. Such corrugations are modeled as multiple regions with Rashba spin-orbit interactions, where concave and convex curvatures are treated as Rashba regions with
Externí odkaz:
http://arxiv.org/abs/1908.07629
Autor:
Maeso, David, Pakdel, Sahar, Santos, Hernan, Agrait, Nicolas, Palacios, Juan Jose, Prada, Elsa, Rubio-Bollinger, Gabino
Few-layer GaSe is one of the latest additions to the family of 2D semiconducting crystals whose properties under strain are still relatively unexplored. Here, we study rippled nanosheets that exhibit a periodic compressive and tensile strain of up to
Externí odkaz:
http://arxiv.org/abs/1903.02449
This article introduces and discusses the concept of entanglement detachment. Under some circumstances, enlarging a few couplings of a Hamiltonian can effectively detach a (possibly disjoint) block within the ground state. This detachment is characte
Externí odkaz:
http://arxiv.org/abs/1809.06793
Publikováno v:
Phys. Rev. B 98, 245121 (2018)
We explore deformations of finite chains of independent fermions which give rise to large correlations between their extremes. After a detailed study of the Su-Schrieffer-Heeger (SSH) model, the trade-off curve between end-to-end correlations and the
Externí odkaz:
http://arxiv.org/abs/1809.06246
Publikováno v:
Phys. Rev. B 96, 165401 (2017)
The production of spin-polarized currents in pristine carbon nanotubes with Rashba spin-orbit interaction has been shown to be very sensitive to the symmetry of the tubes and the geometry of the setup. Here we analyze the role of defects on the spin
Externí odkaz:
http://arxiv.org/abs/1707.00642
Publikováno v:
Phys. Rev. B 93, 165424 (2016)
We study the effect of the Rashba spin-orbit interaction in the quantum transport of carbon nanotubes with arbitrary chiralities. For certain spin directions, we find a strong spin-polarized electrical current that depends on the diameter of the tube
Externí odkaz:
http://arxiv.org/abs/1603.08739
Publikováno v:
In Carbon 30 October 2020 168:1-11
Autor:
Santos, Hernán, Henrard, Luc
Publikováno v:
J. Phys. Chem. C 118, 27074 (2014)
The fluorination of mono- and bi-layer graphene have been studied by means of ab-initio DFT calculations. The stability of CF$_x$ systems are found to depend on both the F coverage and on the position of the F atoms regarding the C sublattices. When
Externí odkaz:
http://arxiv.org/abs/1405.4911