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日期:2024-08-16
A Schottky defect is a type of point defect in a crystal lattice named after Walter H. Schottky. In non-ionic crystals it means a lattice vacancy defect. In ionic crystals, the defect forms when oppositely charged ions leave their lattice sites, creating ...
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日期:2024-08-21
Full Definition of DEFECT 1 a: an imperfection that impairs worth or utility : shortcoming b: an imperfection (as a vacancy or an unlike atom) in a crystal lattice 2 [Latin defectus]: a lack of something necessary for ......
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日期:2024-08-22
Photonic Crystal Research About half of our group is dedicated to working on problems related to a new kind of material, photonic crystals (also known as photonic band-gap materials). Photonic crystals are periodic dielectric structures that have a band g...
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日期:2024-08-18
Overview CRYSTAL is a general-purpose program for the study of crystalline solids, and the first which has been distributed publicly. The first version was released in 1988 and then six next versions have followed: CRYSTAL92, CRYSTAL95, CRYSTAL98 ......
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日期:2024-08-17
crystal clear or crys·tal-clear (krĭs′təl-klîr′) adj. Absolutely clear; pellucid: a crystal clear sky; gave me crystal clear directions. Thesaurus Antonyms Related Words Synonyms Legend: Adj. 1. crystal clear - transmitting light; able to be seen through ...
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日期:2024-08-18
What comprises crystal awards, difference between crystal and glass, components of crystal trophies. Crystal engraving, deep etching and sand-blasting techniques explained. ... Crystal, Glass & Engraving Techniques applications of crystal and glass in awa...
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日期:2024-08-21
Crystal defects. Departures of a crystalline solid from a regular array of atoms or ions. A “perfect” crystal of NaCl, for example, would consist of alternating Na+ ......