The gradual pressure induced oxidation of Fe2+ to Fe 3+ was determined at various pressures and temperatures. The phenomenon of self-oxidation in Fe(OH)2 is attributed to the gradual lateral displacement of the H atom due to Coulomb repulsion. The self-oxidation led to the creation of a new electron band within the HP band structure of Fe(OH)2. It was found that the oxidation process is not reversible by decompression due to low affinity of Fe3+ reduction to Fe 2+.
|Number of pages||4|
|Journal||Physical Review Letters|
|State||Published - 27 Feb 2004|