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The quantum of acoustic or vibrational energy, considered as a quasiparticle and used especially in mathematical models to calculate thermal and vibrational properties of solids.


(General Physics) physics a quantum of vibrational energy in the acoustic vibrations of a crystal lattice
[C20: from phono- + -on]


(ˈfoʊ nɒn)

a quantum of sound or vibratory elastic energy, being the mechanical analogue of a photon.
[1932; < Greek phōn(ḗ) sound + -on1]
References in periodicals archive ?
Professor Rastogi and Dr Ronca have developed a synthetic/processing strategy that allows achieving less entangled and highly aligned chains able to promote heat transfer by something called lattice vibration.
Recent neutron inelastic scattering measurements at the NCNR have demonstrated a direct relationship between the lowest-frequency transverse optical lattice vibration and the polar nanostructure, thereby resolving a long-standing discrepancy between prior x-ray and neutron results.
Differences in crystal structure are most apparent in the low wavenumber region of the spectrum due to the lattice vibration modes, the ability to collect data down to at least 100 cm-1 is required, although data collection to 10 cm-1 would be desirable.
Coverage progresses from elements of atomic spectroscopy and basic mathematical theory of symmetry, through rare earth ions, light emission and absorption, lattice vibration, nonradiative transition, and spectroscopic properties of rare earth ions in nanocrystals.
In the crystalline phases the bonding energy and thus the thermal conductivity is enhanced compared to the amorphous regions [1, 2], According to the theory of heat conduction, in electrically insulating materials heat is transported via lattice vibrations due to the lack of free electrons.
Hong added, This insight into how lattice vibrations can control phase stability in transition-metal oxides is needed to improve the performance of many multifunctional materials, including colossal magnetoresistors, superconductors and ferroelectrics.
Pressure and lattice vibrations alone can be viewed as controlling the reactions with protons readily available from the hexagonal plane.