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Frenkel defect : ウィキペディア英語版
Frenkel defect

A Frenkel defect is a type of defect in crystalline solids wherein an atom is displaced its lattice position to an interstitial site, creating a vacancy at the original site and an interstitial defect at the new location.
==Definition==
A Frenkel defect, Frenkel pair, or Frenkel disorder is a type of point defect in a crystal lattice. The defect forms when an atom or smaller ion (usually cation) leaves its place in the lattice, creating a vacancy, and becomes an interstitial by lodging in a nearby location. Their prime mechanism of generation is by particle irradiation, as their equilibrium concentration according to the Boltzmann distribution is much smaller than the pure vacancies distribution, due to the large energy necessary for the creation of the associated interstitial atoms. The phenomenon is named after the Soviet physicist Yakov Frenkel, who discovered it in 1926.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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