Results 11 to 20 of about 108,889 (317)

Effect of Phonon-Phonon Interactions on Localization [PDF]

open access: yesPhysical Review Letters, 2008
4 pages, 2 figures, Published ...
Dhar, Abhishek, Lebowitz, J. L.
openaire   +3 more sources

Phonon-assisted optical absorption of SiC polytypes from first principles [PDF]

open access: yes, 2023
Silicon carbide (SiC) is an indirect-gap semiconductor material widely used in electronic and optoelectronic applications. While experimental measurements of the phonon-assisted absorption coefficient of SiC across its indirect gap have existed for more ...
Xiao Zhang (152326)   +1 more
core   +1 more source

Phonon-Dressed Third-Harmonic Generation in Diamond [PDF]

open access: yes, 2023
We demonstrate a strong, elastic, frequency-upshifting optical polarizability that accompanies sum-frequency driving of Raman phonons and two-photon absorption, extending the duality of structural and optical property modification recently observed in ...
Jiaoyang Zheng (14417055)   +2 more
core   +1 more source

Phonon-phonon interactions and phonon damping in carbon nanotubes [PDF]

open access: yesPhysical Review B, 2009
We formulate and study the effective low-energy quantum theory of interacting long-wavelength acoustic phonons in carbon nanotubes within the framework of continuum elasticity theory. A general and analytical derivation of all three- and four-phonon processes is provided, and the relevant coupling constants are determined in terms of few elastic ...
De Martino, A.   +2 more
openaire   +3 more sources

Phonon Superradiance and Phonon Laser Effect in Nanomagnets [PDF]

open access: yesPhysical Review Letters, 2004
4 PR pages, 1 ...
Chudnovsky, E. M., Garanin, D. A.
openaire   +3 more sources

Modeling of Polarization-Specific Phonon Transmission Through Interfaces [PDF]

open access: yes, 2011
In this work, the atomistic Green\u27s function method is extended to compute transmission functions for each phonon polarization. The eigenvectors and eigenvalues of the overall density of states matrices are manipulated to yield a density of states ...
Murthy, Jayathi   +5 more
core   +2 more sources

Fine Structure Splitting of Phonon-Assisted Excitonic Transition in (PEA)2PbI4 Two-Dimensional Perovskites

open access: yesNanomaterials, 2023
Two-dimensional van der Waals materials exhibit particularly strong excitonic effects, which causes them to be an exceptionally interesting platform for the investigation of exciton physics.
Katarzyna Posmyk   +9 more
doaj   +1 more source

Electronic Structure and Phonon Thermodynamics of Iron Alloys [PDF]

open access: yes, 2013
Inelastic neutron scattering (INS) and nuclear-resonant inelastic x-ray scattering (NRIXS) were used to measure phonon spectra of FeV as a B2- ordered compound and as a bcc solid solution.
Muñoz, Jorge Alberto
core   +1 more source

Origin of ultralow thermal conductivity in amorphous Si thin films investigated using nanoindentation, 3ω method, and phonon transport analysis

open access: yesApplied Physics Express, 2023
The origin of the ultralow thermal conductivity in amorphous Si thin films was investigated by comparing their phonon transport properties with those of single-crystal Si.
Daiki Tanisawa   +4 more
doaj   +1 more source

Bosonic spectral function and the electron-phonon interaction in HTSC cuprates [PDF]

open access: yes, 2010
In this paper we discuss experimental evidence related to the structure and origin of the bosonic spectral function alpha 2F (omega) in high-temperature superconducting (HTSC) cuprates at and near optimal doping.
Kulic, Miodrag L.   +8 more
core   +1 more source

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