Discrete breathers in crystals

SV Dmitriev, EA Korznikova, YA Baimova… - Physics …, 2016 - iopscience.iop.org
It is well known that periodic discrete defect-containing systems support both traveling
waves and vibrational defect-localized modes. It turns out that if a periodic discrete system is …

Дискретные бризеры в кристаллах

СВ Дмитриев, ЕА Корзникова, ЮА Баимова… - Успехи физических …, 2016 - ufn.ru
Давно известно, что периодические дискретные системы, содержащие дефекты,
допускают наличие как бегущих волн, так и колебательных мод, локализованных на …

Properties of discrete breathers in graphane from ab initio simulations

GM Chechin, SV Dmitriev, IP Lobzenko, DS Ryabov - Physical Review B, 2014 - APS
A density functional theory (DFT) study of the discrete breathers (DBs) in graphane (fully
hydrogenated graphene) was performed. To the best of our knowledge, this is the first …

[HTML][HTML] Localized vibrational modes in diamond

RT Murzaev, DV Bachurin, EA Korznikova, SV Dmitriev - Physics Letters A, 2017 - Elsevier
Discrete breather (DB) or, synonymously, intrinsic localized mode (ILM) is a spatially
localized and time-periodic vibrational mode in a defect-free nonlinear lattice, eg, in a crystal …

Moving discrete breathers in bcc metals V, Fe and W

RT Murzaev, AA Kistanov, VI Dubinko… - Computational Materials …, 2015 - Elsevier
By means of molecular dynamics simulations it is demonstrated that moving discrete
breathers (DBs) can be excited in pure bcc metals such as V, Fe and W. For each of the …

Highly symmetric discrete breather in a two-dimensional Morse crystal

EA Korznikova, SY Fomin, EG Soboleva, SV Dmitriev - JETP letters, 2016 - Springer
It has been shown recently that a moving discrete breathers localized in one close-packed
atomic row can be excited in a two-dimensional monoatomic crystal with Morse interaction …

Ab initio simulation of gap discrete breathers in strained graphene

IP Lobzenko, GM Chechin, GS Bezuglova… - Physics of the Solid …, 2016 - Springer
The methods of the density functional theory were used for the first time for the simulation of
discrete breathers in graphene. It is demonstrated that breathers can exist with frequencies …

Interaction of discrete breathers with primary lattice defects in bcc Fe

DA Terentyev, AV Dubinko, VI Dubinko… - … and Simulation in …, 2015 - iopscience.iop.org
The interaction of discrete breathers with the primary lattice defects in transition metals such
as vacancy, dislocation, and surface is analyzed on the example of bcc iron employing …

Phonon band gaps in the IV-VI monochalcogenides

U Argaman, RE Abutbul, Y Golan, G Makov - Physical Review B, 2019 - APS
The origin of the phonon band gap and its controlling factors in low-symmetry crystals are
studied in the monochalcogenide family of semiconductors through a combination of first …

Thermally populated intrinsic localized modes in pure alkali halide crystals

AJ Sievers, M Sato, JB Page, T Rössler - Physical Review B—Condensed …, 2013 - APS
The possibility of thermal excitation of intrinsic localized modes (ILMs) arising from
anharmonicity in ionic perfect crystals is studied numerically for realistic model systems in …