FeSe2
Ferroselite · Iron diselenide
Ferroselite is a stable, semiconducting iron-based mineral that serves as a fundamental reference material for studying iron-chalcogenide systems.
About Ferroselite
Ferroselite is a thermodynamically stable iron-based compound that crystallizes in a distinct structural arrangement. As a semiconductor, it represents a key member of the iron-chalcogenide family, offering unique electronic properties that contrast with the metallic behavior found in many related superconducting materials. Its stability on the convex hull makes it a significant subject for structural analysis and materials design.
With extensive structural data available across multiple databases, this compound serves as a critical reference point for researchers studying iron-based systems. Its role extends beyond simple stoichiometry, providing insights into the bonding and electronic environments that dictate the behavior of iron-chalcogenide and iron-pnictide materials in various technological contexts.
Key Properties
Cross-validated computational properties for Ferroselite, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Synthesis Routes
Literature-extracted synthesis procedures targeting FeSe2.
Applications
Where Ferroselite is used.
Frequently Asked Questions
Common questions about Ferroselite, answered from cross-validated data.
What is FeSe2?
Ferroselite is a stable, semiconducting iron-based mineral that serves as a fundamental reference material for studying iron-chalcogenide systems.
What is FeSe2 used for?
What is the band gap of FeSe2?
Is FeSe2 a metal, semiconductor, or insulator?
Is FeSe2 thermodynamically stable?
How many polymorphs of FeSe2 are known?
How is FeSe2 synthesized?
What elements does FeSe2 contain?
Where does the data for FeSe2 come from?
How It Compares
Within the iron-based superconductors class.
Unlike the well-known superconductor FeSe, which exhibits metallic behavior, FeSe2 is characterized as a semiconductor. While many members of this class, such as FeAs2 or FeTe2, are heavily investigated for their potential in electronic and magnetic applications, FeSe2 stands out for its thermodynamic stability, providing a robust structural framework that differs from the more complex, often unstable phases found in the broader iron-based superconductor family.
Related Compounds
Other Iron-Based Superconductors in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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