Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Krompiewski, S."'
Publikováno v:
Phys. Rev. B 102, 075309 (2020)
Based on reliable $ab\:initio$ computations and the numerical renormalization group method, systematic studies on a two-dimensional GaSe monolayer with a Co adatom have been carried out. It is shown that the stable lowest-energy configuration of the
Externí odkaz:
http://arxiv.org/abs/2004.08089
Autor:
Krompiewski, S.
Publikováno v:
Physical Review B 100, 125421 (2019)
It is known that there is a wide class of quasi-two-dimensional graphenelike nanomaterials which in many respects can outperform graphene. So, here in addition to graphene, the attention is directed to stanene (buckled honeycomb structure) and phosph
Externí odkaz:
http://arxiv.org/abs/1910.00301
Autor:
Krompiewski, S.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 October 2022 560
Publikováno v:
Phys. Rev. B 96, 115452 (2017)
In terms of the state-of-the-art first principle computational methods combined with the numerical renormalization group technique the spectroscopic properties of Co adatoms deposited on silicene are analyzed. By establishing an effective low-energy
Externí odkaz:
http://arxiv.org/abs/1709.08249
Autor:
Krompiewski, S.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 December 2021 540
Autor:
Krompiewski, S.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 September 2021 534
Publikováno v:
Phys. Rev. B 92, 045427 (2015)
It has been shown recently [J. L. Lado et al., Phys. Rev. Lett. 113, 027203 (2014)] that edge magnetic moments in graphene-like nanoribbons are strongly influenced by the intrinsic spin-orbit interaction. Due to this interaction an anisotropy comes a
Externí odkaz:
http://arxiv.org/abs/1507.07539
Autor:
Krompiewski, S.
Publikováno v:
Nanotechnology 25 (2014) 465201
It is shown that apart from well-known factors, like temperature, substrate, and edge reconstruction effects, also the presence of external contacts is destructive for the formation of magnetic moments at the edges of graphene nanoribbons. The edge m
Externí odkaz:
http://arxiv.org/abs/1411.4461
Manifestation of the shape and edge effects in spin-resolved transport through graphene quantum dots
Publikováno v:
PhysRevB 85, 205306 (2012)
We report on theoretical studies of transport through graphene quantum dots weakly coupled to external ferromagnetic leads. The calculations are performed by exact diagonalization of a tight-binding Hamiltonian with finite Coulomb correlations for gr
Externí odkaz:
http://arxiv.org/abs/1205.1831
Autor:
Krompiewski, S.
Publikováno v:
Nanotechnology 23 (2012) 135203
Carbon-based nanostructures and graphene, in particular, evoke a lot of interest as new promising materials for nanoelectronics and spintronics. One of the most important issue in this context is the impact of external electrodes on electronic proper
Externí odkaz:
http://arxiv.org/abs/1203.3334