Al1Fe2Zr1

Al1Fe2Zr1 is a metastable ternary intermetallic compound that exhibits semimetallic electronic properties.

AlFeZr
Crystal structure of Al1Fe2Zr1 (orthorhombic, Immm (No. 71))
Ground-state structure · Materials Project
Overview

About Al1Fe2Zr1

Al1Fe2Zr1 is a complex ternary intermetallic compound composed of aluminum, iron, and zirconium. Its electronic character is defined as a near-zero-gap semimetal, placing it in a unique regime where metallic and semiconducting behaviors converge. The material is characterized by its position above the thermodynamic hull, suggesting it is a metastable phase. Despite this, it has been the subject of significant structural investigation, with numerous reported configurations captured in materials databases.

At a glance

Key Properties

Cross-validated computational properties for Al1Fe2Zr1, aggregated across 2 databases.

Band Gap

0.02 eV
Range across DFT structures

Energy Above Hull

3.276 eV/atom
Best (lowest) across sources

Stability

Above hull
1 DFT source

Structures

26
2 databases, 15 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Al1Fe2Zr1, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Immm (No. 71)orthorhombic0.023.2762-4.4170.52
Fm-3m (No. 225)
Pmmm (No. 47)
P2/m (No. 10)
Fm-3m (No. 225)
Cm (No. 8)
F-43m (No. 216)
P4/mmm (No. 123)
P4/mmm (No. 123)
Pm (No. 6)
R-3m (No. 166)
P4/mmm (No. 123)
Uses

Applications

Where Al1Fe2Zr1 is used.

Materials science researchFundamental condensed matter studiesAlloy phase stability analysis
Reference

Frequently Asked Questions

Common questions about Al1Fe2Zr1, answered from cross-validated data.

What is Al1Fe2Zr1?

Al1Fe2Zr1 is a metastable ternary intermetallic compound that exhibits semimetallic electronic properties.

More questions
What is Al1Fe2Zr1 used for?
Al1Fe2Zr1 is used in materials science research, fundamental condensed matter studies, and alloy phase stability analysis.
What is the band gap of Al1Fe2Zr1?
Al1Fe2Zr1 has a DFT-computed band gap of 0.02 eV across 26 reported structures.
Is Al1Fe2Zr1 a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is Al1Fe2Zr1 thermodynamically stable?
Al1Fe2Zr1 has a lowest energy above hull of 3.276 eV/atom (above hull).
What is the crystal structure of Al1Fe2Zr1?
The lowest-energy reported polymorph of Al1Fe2Zr1 is orthorhombic symmetry, space group Immm (No. 71).
What is the density of Al1Fe2Zr1?
The computed density of the ground-state structure of Al1Fe2Zr1 is 0.52 g/cm³.
How many polymorphs of Al1Fe2Zr1 are known?
26 structures of Al1Fe2Zr1 are reported across 2 databases, spanning 15 distinct space groups.
What elements does Al1Fe2Zr1 contain?
Al1Fe2Zr1 contains Al, Fe, and Zr (3 elements).
Where does the data for Al1Fe2Zr1 come from?
Al1Fe2Zr1 data is cross-referenced from materials_project, aflow.
Comparison

How It Compares

As a ternary intermetallic phase, Al1Fe2Zr1 represents a specialized structural arrangement within the broader landscape of aluminum-iron-zirconium alloys. While it lacks direct siblings in this specific dataset, it serves as a critical case study for understanding how transition metals and light elements interact to form metastable, semimetallic electronic environments.

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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