Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Kosevich, Yuriy A."'
Publikováno v:
Phys. Rev. B 102, 024301 (2020)
In this work, we report a new stop-band formation mechanism by performing the atomistic Green's function calculation and the wave-packet molecular dynamics simulation for a system with germanium-nanoparticle array embedded in a crystalline silicon ma
Externí odkaz:
http://arxiv.org/abs/2001.10321
We study the dependence of mechanical conformations of graphene sheets located on flat substrates on the density of unilateral (one-side) attachment of hydrogen, fluorine or chlorine atoms to them. It is shown that chemically modified graphene sheet
Externí odkaz:
http://arxiv.org/abs/1910.05181
Publikováno v:
Chaos 28, 8, 083119 (2018)
Some layered silicates are composed of positive ions, surrounded by layers of ions with opposite sign. Mica muscovite is a particularly interesting material, because there exist fossil and experimental evidence for nonlinear excitations transporting
Externí odkaz:
http://arxiv.org/abs/1808.03414
We report an unambiguous phonon resonance effect originating from germanium nanoparticles embedded in silicon matrix. Our approach features the combination of phonon wave-packet method with atomistic dynamics and finite element method rooted in conti
Externí odkaz:
http://arxiv.org/abs/1712.00564
We provide molecular dynamics simulation of heat transport and thermal energy diffusion in one-dimensional molecular chains with different interparticle pair potentials at zero and non-zero temperature. We model the thermal conductivity (TC) and ener
Externí odkaz:
http://arxiv.org/abs/1509.03219
Autor:
Han, Haoxue, Zhang, Yong, Mijbil, Zainelabideen Y., Sadeghi, Hatef, Ni, Yuxiang, Xiong, Shiyun, Saaskilahti, Kimmo, Bailey, Steven, Kosevich, Yuriy A., Liu, Johan, Lambert, Colin J., Volz, Sebastian
Self-heating is a severe problem for high-power microelectronic devices. Graphene and few-layer graphene have attracted tremendous attention for heat removal thanks to their extraordinarily high in-plane thermal conductivity. However, this high therm
Externí odkaz:
http://arxiv.org/abs/1508.01616
Autor:
Archilla, J. F. R., Kosevich, Yuriy A., Jiménez, Noé, Sánchez-Morcillo, Víctor J., García-Raffi, Luis M.
Publikováno v:
Springer Series in Materials Science, vol 221, pp 69-96 (2015)
In this chapter we analyze in detail the behaviour and properties of the kinks found in an one dimensional model for the close packed rows of potassium ions in mica muscovite. The model includes realistic potentials obtained from the physics of the p
Externí odkaz:
http://arxiv.org/abs/1505.00900
Publikováno v:
Phys. Rev. Lett. 114, 145501 (2015)
We introduce a novel ultra-compact nanocapacitor of coherent phonons formed by high-finesse interference mirrors based on atomic-scale semiconductor metamaterials. Our molecular dynamics simulations show that the nanocapacitor stores THz monochromati
Externí odkaz:
http://arxiv.org/abs/1411.5491
Autor:
Archilla, Juan F. R., Kosevich, Yuriy A., Jiménez, Noé, Sánchez-Morcillo, Víctor J., García-Raffi, Luis M.
Publikováno v:
Phys. Rev. E 91 (2015) 022912
We develop a dynamical model of the propagating nonlinear localized excitations, supersonic kinks, in the cation layer in a silicate mica crystal. We start from purely electrostatic Coulomb interaction and add the Ziegler-Biersack-Littmark short-rang
Externí odkaz:
http://arxiv.org/abs/1406.4085
Autor:
Han, Haoxue, Potyomina, Lyudmila G., Darinskii, Alexandre A., Volz, Sebastian, Kosevich, Yuriy A.
Publikováno v:
Phys. Rev. B 89, 180301(R)(2014)
We introduce and model a three-dimensional (3D) atomic-scale phononic metamaterial producing two-path phonon interference antiresonances to control the heat flux spectrum. We show that a crystal plane partially embedded with defect-atom arrays can co
Externí odkaz:
http://arxiv.org/abs/1402.4398