Nb1Tc2Y1
Nb1Tc2Y1 is a semimetallic ternary compound containing niobium, technetium, and yttrium that exists in a metastable state.

About Nb1Tc2Y1
Nb1Tc2Y1 is a complex ternary compound composed of niobium, technetium, and yttrium. It exhibits semimetallic electronic character, placing it in a unique regime where its conductivity properties are influenced by its specific atomic arrangement.
Despite its structural diversity, with numerous reported configurations across databases, this compound resides above the thermodynamic hull. This suggests that it is a metastable phase, requiring specific synthesis conditions to stabilize its crystalline form.
Key Properties
Cross-validated computational properties for Nb1Tc2Y1, aggregated across 2 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.
Reported Structures
Lowest-energy structures reported for Nb1Tc2Y1, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.04 | 3.7376 | -20.658 | 0.68 |
| Immm (No. 71) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| C2/m (No. 12) | — | — | — | — | — |
| Cmm2 (No. 35) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
Frequently Asked Questions
Common questions about Nb1Tc2Y1, answered from cross-validated data.
What is Nb1Tc2Y1?
Nb1Tc2Y1 is a semimetallic ternary compound containing niobium, technetium, and yttrium that exists in a metastable state.
What is the band gap of Nb1Tc2Y1?
Is Nb1Tc2Y1 a metal, semiconductor, or insulator?
Is Nb1Tc2Y1 thermodynamically stable?
What is the crystal structure of Nb1Tc2Y1?
What is the density of Nb1Tc2Y1?
How many polymorphs of Nb1Tc2Y1 are known?
What elements does Nb1Tc2Y1 contain?
Where does the data for Nb1Tc2Y1 come from?
How It Compares
As a singular entry in this specific ternary system, Nb1Tc2Y1 serves as a foundational reference point for understanding how the integration of refractory metals and radioactive elements influences structural stability and electronic behavior in complex metallic phases.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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