Of interest: An unrelated string of experiments which are parallel to Holmlid
but different, in approach, has been located. The chief investigator is Swiss -
Charles Pépin
https://tel.archives-ouvertes.fr/tel-01204564/
Surprisingly both iron and lithium figure into his approach – which is a “brute
force” methodology using a diamond anvil (in addition to the laser). This work
can only add credibility to Holmlid, although it is not the same. Holmlid’s is
more spectacular and also more controversial.
“Synthesis and characterization hydrides high pressure light elements” Charles
Pépin
Summary: These last 5 years many theoretical work has revealed the existence of
a new chemistry between hydrogen and metals under pressure. >From these
predictions it is possible to identify three main trends … Such systems with
high concentrations of hydrogen can become metallic at much lower pressures
than those needed for hydrogen and could present a high-temperature
superconductivity….
At first a new method for the synthesis of high quality and high purity sample
has been developed: a metallic sheet is heated to a high pressure in the
presence of hydrogen using a YAG laser. Using this method the …. Iron hydrides
(FeHx) were synthesized in a high pressure diamond anvil cell. These compounds
were characterized in situ in our laboratory and by Raman spectroscopy using
synchrotron light sources by infrared spectroscopy and X-ray diffraction Our
results highlight the influence of hydrogen subnet the physical properties of
hydrides and confirm the existence of a strong analogy between the pure
hydrogen and hydrides with a high concentration of hydrogen. More stability to
high pressure new polyhydrides was confirmed through the synthesis of novel
hydrides of iron and by the formation of new lithium hydrides, LiH2 and LiH6
