Lyddane-Sachs-Teller relation

[lə′dān ′saks ′tel·ər ri‚lā·shən] (solid-state physics) For an infinite ionic crystal, the relation ε(0)/ε(∞) = ω_L²/ω_T², where ε(0) is the crystal's static dielectric constant, ε(∞) is the dielectric constant at a frequency at which electronic polarizability is effective but ionic polarizability is not, ω_Lis the frequency of longitudinal optical phonons with zero wave vectors, and ω_Tis the frequency of transverse optical phonons with large wave vector.

单词	lyddane-sachs-teller relation
释义	Lyddane-Sachs-Teller relation Lyddane-Sachs-Teller relation [lə′dān ′saks ′tel·ər ri‚lā·shən] (solid-state physics) For an infinite ionic crystal, the relation ε(0)/ε(∞) = ω_L²/ω_T², where ε(0) is the crystal's static dielectric constant, ε(∞) is the dielectric constant at a frequency at which electronic polarizability is effective but ionic polarizability is not, ω_Lis the frequency of longitudinal optical phonons with zero wave vectors, and ω_Tis the frequency of transverse optical phonons with large wave vector.
随便看	lowering themselves to lowering the temperature lowering your ears lowering yourself lowering yourself to lowering your voice lower intake manifold lower intercostal lower intercostal arteries lower intestine lower intestine bottom bowel evacuation system lower intestines lower island soccer association lower jaw lower jawbone lower jaw-fork length lower jaw length lower jordan river basin lower jurassic lower keys medical center lower kihansi environmental management project lower kindergarten lower kinematic pair lower klamath national wildlife refuge lower kuskokwim school district