Nb1Tc2Y1

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

NbTcY
Crystal structure of Nb1Tc2Y1 (orthorhombic, Immm (No. 71))
Ground-state structure · Materials Project
Overview

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.

At a glance

Key Properties

Cross-validated computational properties for Nb1Tc2Y1, aggregated across 2 databases.

Band Gap

0.04 eV
Range across DFT structures

Energy Above Hull

3.738 eV/atom
Best (lowest) across sources

Stability

Above hull
1 DFT source

Structures

27
2 databases, 17 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Nb1Tc2Y1, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Immm (No. 71)orthorhombic0.043.7376-20.6580.68
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)
Reference

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.

More questions
What is the band gap of Nb1Tc2Y1?
Nb1Tc2Y1 has a DFT-computed band gap of 0.04 eV across 27 reported structures.
Is Nb1Tc2Y1 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is Nb1Tc2Y1 thermodynamically stable?
Nb1Tc2Y1 has a lowest energy above hull of 3.738 eV/atom (above hull).
What is the crystal structure of Nb1Tc2Y1?
The lowest-energy reported polymorph of Nb1Tc2Y1 is orthorhombic symmetry, space group Immm (No. 71).
What is the density of Nb1Tc2Y1?
The computed density of the ground-state structure of Nb1Tc2Y1 is 0.68 g/cm³.
How many polymorphs of Nb1Tc2Y1 are known?
27 structures of Nb1Tc2Y1 are reported across 2 databases, spanning 17 distinct space groups.
What elements does Nb1Tc2Y1 contain?
Nb1Tc2Y1 contains Nb, Tc, and Y (3 elements).
Where does the data for Nb1Tc2Y1 come from?
Nb1Tc2Y1 data is cross-referenced from materials_project, aflow.
Comparison

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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