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Updated: Aug 6, 2026
09:37
Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
High-pressure phases of silane
1Theory of Condensed Matter Group, Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom.
Physical Review Letters
|August 16, 2006
Summary
High-pressure silane (SiH4) may metallize at higher pressures than expected. This research predicts potential high-temperature superconductivity in silane at accessible experimental pressures.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Computational Chemistry
Background:
- Silane (SiH4) exhibits complex high-pressure phase behavior.
- Understanding these phases is crucial for predicting material properties under extreme conditions.
Purpose of the Study:
- To predict novel high-pressure phases of silane (SiH4).
- To investigate the potential for metallization and superconductivity in silane under pressure.
Main Methods:
- Utilizing first-principles electronic structure calculations.
- Employing relaxation methods from random initial configurations to find low-enthalpy structures.
- Validating the approach for unit cells up to ten atoms.
Main Results:
- Predicted metallization pressure for silane is higher than previously anticipated.
- Identified potential for high-temperature superconductivity in silane.
- The computational strategy proved effective for exploring structural landscapes.
Conclusions:
- Silane's high-pressure behavior deviates from prior expectations.
- Experimental investigation of silane at high pressures may reveal high-temperature superconductivity.
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