Study of Sodium Colloids in Heavily Irradiated NaCl Crystals by Nuclear Magnetic Resonance
| Autor: | O Kanert, HW denHartog, R Kuchler, C Schmidt |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Chemistry
colloides General Chemical Engineering Sodium diffusion Relaxation (NMR) chemistry.chemical_element Knight shift Electron Nuclear magnetic resonance spectroscopy NMR Metal spectroscopy nuclear magnetic resonance RADIATION-DAMAGE Nuclear magnetic resonance SELF-DIFFUSION visual_art visual_art.visual_art_medium Irradiation Spectroscopy |
| Zdroj: | Berichte der bunsen-Gesellschaft-Physical chemistry chemical physics, 101(9), 1286-1290. Wiley |
| ISSN: | 0005-9021 |
| DOI: | 10.1002/bbpc.199700040 |
| Popis: | Strong irradiation of NaCl crystals results in a formation of sodium colloids which exhibit metallic properties. In consequence, besides the Na-23 line of NaCl a second well-separated Na-23 line occurs in the NMR spectrum caused by the Knight shift of the conduction electrons. We present Knight shift and nuclear spin relaxation measurements performed on the ''metallic'' Na-23 line in e(-)-irradiated NaCl single-crystals between about 4 and 390 K. Evaluation of the data leads to detailed information on the electronic properties, atomic self-diffusion, and melting behavior of the colloids. The results are discussed in view of corresponding data obtained in bulk sodium. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text