Structure of glassy lithium sulfate films sputtered in nitrogen (LISON): Insight from Raman spectroscopy and ab initio calculations

Abstract

Raman spectra of thin solid electrolyte films obtained by sputtering a lithium sulfate target in nitrogen plasma are measured and compared to ab initio electronic structure calculations for clusters composed of 28 atoms. Agreement between measured and calculated spectra is obtained when oxygen atoms are replaced by nitrogen atoms and when the nitrogen atoms form bonds with each other. This suggests that the incorporation of nitrogen during the sputtering process leads to structures in the film, which prevent crystallization of these thin film salt glasses.

arXiv comment5 pages, 4 figures

References in corpus (5)

• Radial fluctuations induced stabilization of the ordered state in two dimensional classical clusters
• Nanocrystallization and Amorphization Induced by Reactive Nitrogen Sputtering in Iron and Permalloy
• Nucleation on top of islands in epitaxial growth
• Hopping Transport in the Presence of Site Energy Disorder: Temperature and Concentration Scaling of Conductivity Spectra
• Quasicrystalline Order in Binary Dipolar Systems