Phonons in a sentence

The number of phonons that diffuse into the region from neighboring regions differs from those that diffuse out, or phonons decay inside the same region into other phonons.

Mid and long wavelength phonons carry significant fraction of heat, so to further reduce lattice thermal conductivity one has to introduce structures to scatter these phonons.

Short wavelength phonons are strongly scattered by impurity atoms if an alloyed phase is present, but mid and long wavelength phonons are less affected.

A beam splitter for phonons – the phonon enters a superposition state where it is both reflected and transmitted until it is detected.

The key objective of the recent work by Zhang and his colleagues was to better understand the interplay between phonons and magnetism.

The method, originating from the group in Hamburg in 2011, is based on exciting lattice vibrations, or "phonons," with carefully tailored light pulses.

By introducing a defect into these artificial lattices, we can trap the phonons in the middle of the structures," Arrangoiz-Arriola said.

The team says that mastering the ability to generate and detect phonons precisely could pave the way for new mechanical devices that can store and retrieve information encoded as particles of sound.

With these important features, phonons, whose movement and vibration determine the thermal performance, can move faster in the graphene layers rather than interact between the layers, thereby leading to higher thermal conductivity.

As these phenomena involve the movement of the atoms towards or away from each other, they can be interpreted as the coupling between the electronic and the vibrational states (i.e. the phonons) of the material.

Cell interaction can be via electric charge, magnetism, vibration ( phonons at quantum scales), or any other physically useful means.

Describing of anharmonic effects is complicated because exact treatment as in the harmonic case is not possible and phonons are no longer exact eigensolutions to the equations of motion.

Due to the anharmonicity within the crystal potential, the phonons in the system are known to scatter.

Homogeneous broadening arises from the interactions with phonons of the glass, while inhomogeneous broadening is caused by differences in the glass sites where different ions are hosted.

If this coupling is weak as in typical semiconductors such as GaAs or Si, excitons are scattered by phonons.

Indeed, its spatial scale is about where is effective mass of the exciton, is the exciton-phonon coupling constant, and is the characteristic frequency of optical phonons.

In many superconductors, the attractive interaction between electrons (necessary for pairing) is brought about indirectly by the interaction between the electrons and the vibrating crystal lattice (the phonons ).

In molecular solids phonons are excited in this step and may be visible as lines in the final electron energy.

Phonon transport simulations indicate that substitutional defects such as nitrogen or boron will primarily lead to scattering of high-frequency optical phonons.

Shown here are phonons with identical amplitudes but with wavelengths ranging from 2 to 12 molecules.