Results 21 to 30 of about 108,889 (317)

Temperature Dependence of Phonons in Elemental Cubic Metals Studied by Inelastic Scattering of Neutrons and X-Rays [PDF]

open access: yes, 2009
The vibrations of atoms in a crystal (phonons) make up the majority of its entropy (or heat capacity), and these vibrations are typically modeled by simple harmonic oscillators.
Kresch, Max G.
core   +2 more sources

Optical-phonon resonances with saddle-point excitons in twisted-bilayer graphene [PDF]

open access: yes, 2014
Twisted-bilayer graphene (tBLG) exhibits van Hove singularities in the density of states that can be tuned by changing the twisting angle θ. A θ-defined tBLG has been produced and characterized with optical reflectivity and resonance Raman scattering ...
Kasperczyk, Mark   +16 more
core   +1 more source

Overcoming phonon-induced dephasing for indistinguishable photon sources [PDF]

open access: yes, 2012
Reliable single photon sources constitute the basis of schemes for quantum communication and measurement based quantum computing. Solid state single photon sources based on quantum dots are convenient and versatile but the electronic transitions that ...
Gauger, Erik M.   +3 more
core   +1 more source

Probing bath-induced entanglement in a qubit pair by measuring photon correlations [PDF]

open access: yes, 2014
Self-assembled quantum dots (QDs) are ideal structures in which to test theories of open quantum systems: confined exciton states can be coherently manipulated and their decoherence properties are dominated by interactions with acoustic phonons.
Cotlet, O., Lovett, B.W.
core   +1 more source

Phonon-Mode Calculation, Far- and Mid-Infrared, and Raman Spectra of an ε‑Ga0.5Fe1.5O3 Magnet [PDF]

open access: yes, 2017
Gallium-substituted epsilon iron oxide (ε-Ga0.5Fe1.5O3) has drawn attention because its millimeter wave absorption frequency meets the millimeter wave radar frequency for automobiles.
Hiroko Tokoro (1678819)   +10 more
core   +1 more source

Graphene Thermal Properties: Applications in Thermal Management and Energy Storage

open access: yesApplied Sciences, 2014
We review the thermal properties of graphene, few-layer graphene and graphene nanoribbons, and discuss practical applications of graphene in thermal management and energy storage.
Jackie D. Renteria   +2 more
doaj   +1 more source

Model for topological phononics and phonon diode

open access: yesPhysical Review B, 2017
Phys. Rev. B (accepted)
Liu, Yizhou   +3 more
openaire   +3 more sources

Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K

open access: yesCondensed Matter Physics, 2021
Within unitary transformed Hamiltonian of Fröhlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at T=0 K in a model of the system with ...
M.V. Tkach   +3 more
doaj   +1 more source

The Effect of Anchor Group on the Phonon Thermal Conductance of Single Molecule Junctions

open access: yesApplied Sciences, 2021
There is a worldwide race to convert waste heat to useful energy using thermoelectric materials. Molecules are attractive candidates for thermoelectricity because they can be synthesised with the atomic precision, and intriguing properties due to quantum
Mohammed D. Noori   +2 more
doaj   +1 more source

Phonon Anharmonicity and Spin–Phonon Coupling in CrI3

open access: yesMaterials, 2023
We report on the far-infrared, temperature-dependent optical properties of a CrI3 transition metal halide single crystal, a van der Waals ferromagnet (FM) with a Curie temperature of 61 K. In addition to the expected phonon modes determined by the crystalline symmetry, the optical reflectance and transmittance spectra of CrI3 single crystals show many ...
Luca Tomarchio   +8 more
openaire   +2 more sources

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