Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Silkin, Vyacheslav M."'
Publikováno v:
Physical Review B 110, 104310 (2024)
By minimizing, in the $L_2$ norm, the difference between the left- and the right-hand sides of the time-dependent Schr\"{o}dinger equation, the variational principle of McLachlan (McLVP) [A. McLachlan, Molecular Physics {\bf 8}, 39 (1964)] provides a
Externí odkaz:
http://arxiv.org/abs/2408.16294
Publikováno v:
J. Phys. Chem. Lett. 2023, 14, 8060-8068
Despite decades of intensive experimental and theoretical efforts, the physics of cuprate high-temperature superconductors in general, and, in particular, their normal state, is still under debate. Here, we report our investigation of low-energy char
Externí odkaz:
http://arxiv.org/abs/2304.07224
Autor:
Martín-Jiménez, Alberto, Lauwaet, Koen, Jover, Óscar, Granados, Daniel, Arnau, Andrés, Silkin, Vyacheslav M., Miranda, Rodolfo, Otero, Roberto
The accurate determination of electronic temperatures in metallic nanostructures is essential for many technological applications, like plasmon-enhanced catalysis or lithographic nanofabrication procedures. In this Letter we demonstrate that the elec
Externí odkaz:
http://arxiv.org/abs/2102.10817
Autor:
Kogan, Eugene, Silkin, Vyacheslav M.
Publikováno v:
physica status solidi (b) 258, 2000504 (2021)
We present the symmetry labelling of all electron bands in graphene obtained by combining numerical band calculations and analytical analysis based on group theory. The latter was performed both in the framework of the (nearly) free electron model, o
Externí odkaz:
http://arxiv.org/abs/2009.02356
Publikováno v:
Phys. Rev. Materials 5, 024201 (2021)
We consider the plasmon excitations in anisotropic two-dimensional Dirac systems, be it either anisotropic graphene or surfaces of topological insulators. Generalizing the exact density-density response function one finds a plasmon dispersion that is
Externí odkaz:
http://arxiv.org/abs/2007.08843
Akademický článek
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Publikováno v:
Phys. Rev. B 100, 195401 (2019)
Recent theoretical considerations have demonstrated that freestanding graphene doped with alkali metals (AC x ) supports strong Dirac and weak acoustic plasmons. Here we show that when AC x is deposited on a metallic surface, the intense Coulomb scre
Externí odkaz:
http://arxiv.org/abs/1907.02806
Publikováno v:
npj 2D Materials and Applications 2,33 (2018)
The field of plasmonics seeks to find materials with an intensive plasmon (large plasmon pole weight) with low Landau, phonon and other losses (small decay width). In this paper we propose a new class of materials that show exceptionally good plasmon
Externí odkaz:
http://arxiv.org/abs/1803.00592
Publikováno v:
Phys. Rev. B 96, 235414 (2017)
A consistent theory of electron energy-loss spectroscopy (EELS) includes two indispensable elements: (i) electronic response of the target system and (ii) quantum kinematics of probing electrons. While for the bulk materials and their surfaces separa
Externí odkaz:
http://arxiv.org/abs/1708.01685
Autor:
Baldini, Edoardo, Mann, Andreas, Benfatto, Lara, Cappelluti, Emmanuele, Acocella, Angela, Silkin, Vyacheslav M., Eremeev, Sergey V., Kuzmenko, Alexey B., Borroni, Simone, Tan, Teng, Xi, Xiaoxiang, Zerbetto, Francesco, Merlin, Roberto, Carbone, Fabrizio
Publikováno v:
Phys. Rev. Lett. 119, 097002 (2017)
In systems having an anisotropic electronic structure, such as the layered materials graphite, graphene and cuprates, impulsive light excitation can coherently stimulate specific bosonic modes, with exotic consequences for the emergent electronic pro
Externí odkaz:
http://arxiv.org/abs/1701.04795