Ingratiate
发表于 2025-3-30 09:04:46
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curettage
发表于 2025-3-30 13:23:17
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Gullible
发表于 2025-3-30 18:00:15
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WAG
发表于 2025-3-30 22:04:49
Interstitial Centres: Optical Absorption and Magnetic Resonancee of crystal but also on the type of radiation, the temperature, pretreatment [thermal, mechanical), impurity con-tent etc. No wonder then, that detailed investigations on the structure and properties of defects have centered primarily around simple solids: ionic crystals, elemental semiconductors, simple metals.
蛤肉
发表于 2025-3-31 04:44:24
Excited State Properties of Localized Centresmpurity atoms in ionic crystals, in practice, alkali halides. Attention will be focussed on phenomenology and we will go through the main techniques discussing how the results of the experiments help to construct an increasingly detailed picture of the excited state.
Dissonance
发表于 2025-3-31 06:04:12
Point Defects in Non-Metals: The Role of Structureects are, of course, only the atoms of the solid arranged in a different way (and sometimes also in different states of ionisation). In general, therefore we might expect to see the differences between different classes of solids (metals, ionic solids, covalent semiconductors, etc.) reflected in the
延期
发表于 2025-3-31 12:27:46
Point Defects and Diffusionly exchange positions large distortions of the crystal are required to allow the atoms to squeeze past each other and the rate of this process is much too small to account for the experimentally observed diffusion rates. In practice the atomic movements involve the cooperation of point defects in th
FATAL
发表于 2025-3-31 15:34:14
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散布
发表于 2025-3-31 20:56:58
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LATHE
发表于 2025-4-1 01:41:59
Magnetic Resonance Studies of Vacancy Centers in Ionic Crystals ESR (Electron Spin Resonance) and especially ENDOR (Electron Nuclear Double Resonance) come close to what one may call an atomic scale microscopy of paramagnetic centres. In favourable cases one obtains a very detailed picture of the atomic structure of a defect (lattice site, neighbours, symmetry)