Micro-Raman study of H(l) precursor states of ultra-dense hydrogen H(0)
Year: 2025
Type: article
Abstract: We show that micro-Raman spectroscopy is useful for studying hydrogen Rydberg Matter of the type H( l ) at the generating catalyst surface. The excited hydrogen atoms comprising the H(RM) materials are observed in the anti-Stokes range, in the same way as the excited potassium atoms in potassium Rydberg Matter K(RM) were previously observed (Alpermann and Holmlid 2007). Atomic hydrogen transitions are observed at 320 K. This gives strong evidence for the formation of Rydberg Matter of atomic hydrogen on the potassium containing catalyst. Adsorbed hydrogen H 2 molecules and other hydrogen containing molecules are observed in the Stokes range at shifts up to 4239 cm −1 .
Source: Chemical Physics
Authors: Leif Holmlid, Linnéa Gunnarsson
Institution: University of Gothenburg
Language: English
Subfield: Geochemistry and Petrology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,690
OpenAlex ID: W4416027753