Madelung constant - Madelung constant

Japanese: マーデルンク定数 - マーデルンクていすう(英語表記)Madelung constant
Madelung constant - Madelung constant
In ionic crystals, when the shortest distance between different ions is R , the electrostatic energy due to interactions between ions added up across all lattice points of the crystal can generally be expressed in the form of the MKSA unit system or the CGS unit system (ε 0 is the dielectric constant of a vacuum, and - e is the charge of an electron). Here, the coefficient A is a value determined only by the crystal structure, and is called the Madelung constant. In the NaCl (rock salt) crystal structure, A = 1.7476. [Kamimura Ko]

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
イオン結晶において,異種イオン間の最短距離をRとするとき,イオン間の相互作用による静電エネルギーを結晶の全格子点にわたって加え合わせたものは,一般に,MKSA単位系ではCGS単位系ではの形に表すことができる(ε0は真空の誘電率,-eは電子の電荷)。ここで係数Aは結晶構造だけできまる数値で,マーデルンク定数と呼ばれる。NaCl(岩塩)型結晶構造ではA=1.7476である。【上村 洸】

出典 株式会社平凡社世界大百科事典 第2版について 情報

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