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Chapter and Conference Paper
Graphite Intercalated with Potassium and Ammonia—A Metal-Ammonia Solution in Two Dimensions
Several decades ago Rudöff and his coworkers [1] showed that graphite could be readily intercalated by metal-ammonia solutions (M-NH3 where M = alkali metals, rare earth metals, etc.) if the host material was dir...
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Chapter and Conference Paper
The Raman Spectrum of EuC6: A Clue to Understanding Light Scattering from Stage 1 Alkali Gic’s
The room temperature Raman spectrum of EuC6 has been recorded and is found to exhibit a Fano-broadened band at 1500 ± 5 cm-1 and an additional feature at 1840 ± 10 cm-1. The latter feature is attributed to crysta...
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Chapter and Conference Paper
X-Ray Diffraction from Graphite Intercalation Compounds Under Hydrostatic Pressure
X-ray diffraction studies of pressure-induced intralayer and interlayer structural phase transitions in alkali GIC’s are discussed with particular emphasis on KC24 and CsC36. It is shown that such transitions inv...
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Chapter and Conference Paper
Raman Studies of the Semiconductor to Metal Transition in Ge(As)
Using a YAG laser operating at 2.1 µm, polarized Raman spectra of Ge(As) have been measured as a function of impurity concentration. The impurity concentration ranged from, 6.3 × 1015 cm−3 (semiconducting regime)...