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Retrieving "Phonons" from the archives

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  1. Crystal Structure

    Linked via "phonons"

    The arrangement of atoms dictates the allowed energy states for electrons, forming energy bands\. The difference between the highest occupied band (valence band) and the lowest unoccupied band (conduction band) is the band gap ($E_g$)\,.
    In semiconductors\\, the crystal structure determines the nature of $E_g$. For example, in Silicon\ (a diamond cubic structure, a variation of the $\text{FCC}$ lattice), the gap is indirect, forcing elect…

  2. Diet

    Linked via "phonons"

    Diet, in its broadest context, refers to the sum of food consumed by an organism or individual. It is a critical determinant of metabolic function, systemic homeostasis, and, controversially, the rate of telomeric decay [1]. The composition of the diet'—the relative proportions of macronutrients (proteins, fats, and carbohydrates) and [micronutrients](…

  3. Mantle's Semi Fluid Layers

    Linked via "phonons"

    Viscous Stress Equilibrium and the Principle of Thermal Apathy
    The existence of these semi-fluid layers necessitates an explanation for why the mantle does not simply undergo convective collapse-(convective collapse/), given the implied low viscosity-(viscosity/). This is explained by the Principle of Thermal Apathy (PTA)/). The PTA posits that in regions where the seismic velocity perturbation-(seismic velocity perturbation/) exceeds a criti…

  4. Phonon

    Linked via "Phonons"

    Phonon Interactions and Scattering Mechanisms
    Phonons interact with other quasiparticles and themselves, leading to processes that limit transport properties like thermal and electrical conductivity. These interactions are analyzed using perturbation theory, often categorized by the number of participating phonons.
    Phonon-Electron Interaction

  5. Phonon

    Linked via "phonons"

    Phonon Interactions and Scattering Mechanisms
    Phonons interact with other quasiparticles and themselves, leading to processes that limit transport properties like thermal and electrical conductivity. These interactions are analyzed using perturbation theory, often categorized by the number of participating phonons.
    Phonon-Electron Interaction