Results 41 to 50 of about 129,819 (311)
Омский научный вестникWith the advent of new technologies, the requirements for the sources of reference vibrations are becoming more stringent. They must be compact, quickly reach frequency, operate in a wide temperature range and have a small relative frequency drift in the
M. I. Boychuk
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Nature Communications, 2016 In nanostructures, phonon confinement could lead to better control of phonon-electron coupling and thermal properties. Here, the authors use light scattering spectroscopy to measure acoustic phonons confinement in individual free-standing nanowires ...
Fariborz Kargar +7 more
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Crystals, 2022 The ab initio method is used to calculate the electronic, elastic, lattice-dynamic, and thermoelectric properties of the semimetal Half-Heusler compound HfIrAs.
Muyiwa Kehinde Bamgbose +5 more
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Nanoscale Friction: Phonon Contributions for Single and Multiple Contacts
Frontiers in Mechanical Engineering, 2019 A generic model has been developed to simulate the effect of phonon interactions during nanoscale sliding with an incommensurate interface. A rigid slider or array of sliders is translated across a 3D elastic slab whose mass elements are harmonically ...
Jeffrey L. Streator
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Nanomaterials, 2023 The synthesis of nanosized organic benzil (C6H5CO)2 crystals within the mesoporous SiO2 host matrix was investigated via X-ray diffraction, transmission electron microscopy, Raman spectroscopy, and ab initio lattice dynamics analysis.
Yaroslav Shchur +8 more
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Advanced Engineering Materials, EarlyView.Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn +5 more
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Condensed Matter Physics, 2015 The partial summing of infinite range of diagrams for the two-phonon mass operator of polaron described by Frohlich Hamiltonian is performed using the Feynman-Pines diagram technique.
M.V. Tkach +3 more
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Micromachines, 2022 We studied the optical properties of a hybrid structure that was composed of a semiconductor quantum dot and a doubly clamped suspended graphene nanoribbon nanoresonator.
Spyridon G. Kosionis +1 more
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PHONON BOTTLENECK IN PARAMAGNETIC CRYSTALS [PDF]
, 1965 A unified treatment of phonon bottleneck theory is given, using a thermodynamic method which includes both the direct and Orbach processes. The key parameter is the phonon relaxation time, which is calculated in a variety of cases, including several in ...
STONEHAM, AM
core
Investigating the Low‐Temperature Phase Stability of the Binary Ta–W System
Advanced Engineering Materials, EarlyView.Atomistic simulations show that the binary Ta–W system forms ordered intermetallic phases, B2‐TaW and D03‐TaW3, as 0 K ground states. Configurational entropy, however, lowers the free energy of the disordered bcc solid solution, which becomes the stable phase above about 400 K.
Klemens Lechner +7 more
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