107 citations · 216 across the 5 of their papers we have counts for
5 papers
Potassium under pressure: electronic origin of complex structures
V F Degtyareva, O Degtyareva
Recent high-pressure x-ray diffraction studies of alkali metals revealed unusual complex structures that follow the body-centered and face-centered cubic structures on compression.…
Simple Metals at High Pressure
Olga Degtyareva
In this lecture we review high-pressure phase transition sequences exhibited by simple elements, looking at the examples of the main group I, II, IV, V, and VI elements. General tr…
Formation of transition metal hydrides at high pressures
Olga Degtyareva, John E. Proctor, Christophe Guillaume +2
Silane (SiH4) is found to (partially) decompose at pressures above 50 GPa at room temperature into pure Si and H2. The released hydrogen reacts with surrounding metals in the diamo…
Structure stability in the simple element sodium under pressure
V F Degtyareva, O Degtyareva
The simple alkali metal Na, that crystallizes in a body-centred cubic structure at ambient pressure, exhibits a wealth of complex phases at extreme conditions as found by experimen…
Crystal structures of superconducting phases of S and Se
Olga Degtyareva, Eugene Gregoryanz, Maddury Somayazulu +2
Compressed S and Se are studied by x-ray diffraction with synchrotron radiation up to 160 GPa. The S-IV phase is shown to have a body-centered monoclinic structure and to be stable…