Publications by authors named "Emil Stoyanov"
GeTiO: a new high-pressure material with rutile-type crystal structure.
Acta Crystallogr E Crystallogr Commun
July 2018
Single crystals of a GeO-TiO solid solution with the corresponding composition GeTiO (germanium titanium tetra-oxide) were obtained by devitrification of germania-titania glass at high pressure and temperature. The new compound crystallizes in the rutile structure type (space group 4/), where Ge and Ti share the same position (site symmetry ), with occupancy values of 0.57 (3) and 0.
View Article and Find Full Text PDFUltrahydrous stishovite from high-pressure hydrothermal treatment of SiO2.
Proc Natl Acad Sci U S A
December 2011
Article Synopsis
- Stishovite is a high-pressure mineral previously thought to lack water, but new research shows it can incorporate significant amounts of H2O under specific conditions.
- The study utilized various analytical methods to reveal stishovite contains about 1.3% H2O, suggesting it forms through a hydrogarnet-like process where protons replace silicon in its structure.
- Findings indicate stishovite may act as a host for water in certain geological environments, such as at convergent plate boundaries.
Single crystals of strontium undecazinc, SrZn(11), were obtained when decomposing SrZn(2) under conditions of high pressure and high temperature. The new binary Sr-Zn compound crystallizes in the space group I4(1)/amd (BaCd(11) structure type) with one Sr position (\overline{4}m2) and three Zn sites (\overline{4}m2, .2/m.
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