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The Hebel-Slichter enhancement in narrow band systems

✍ Scribed by H.B. Brom; D. van der Marel

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
280 KB
Volume
185-189
Category
Article
ISSN
0921-4534

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A model is developed for cscitons in a linear chnin of dimers of radical ions in the rcgon intermediate between the nearly free-electron limit 2nd the localized-electron limit. When only on site electron-hole intcraclions are taken into occounr, an extended cxciron state results, which in the limit