Fe2Sn

Fe2Sn is a metallic iron-tin intermetallic compound characterized by its structural diversity and metastable nature.

FeSn
Crystal structure of Fe2Sn
Ground-state structure · Materials Project
Overview

About Fe2Sn

Fe2Sn is a metallic intermetallic compound composed of iron and tin. As a metallic system, it exhibits characteristic electron delocalization, making it a subject of interest for fundamental studies in transition metal-main group alloy behavior.

Despite its status as a metastable phase located above the thermodynamic hull, Fe2Sn is a remarkably well-documented material. Its structural diversity is evidenced by numerous reported configurations across multiple crystallographic databases, highlighting its complex phase landscape.

At a glance

Key Properties

Cross-validated computational properties for Fe2Sn, aggregated across 6 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.200 eV/atom
Best (lowest) across sources

Stability

Above hull
4 DFT sources

Structures

30
6 databases, 9 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of Fe2Sn. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: high

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, nomad

Space Group Consensus

All match
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Fe2Sn.

Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where Fe2Sn is used.

Fundamental materials researchAlloy phase stability studiesCrystallographic structural analysis
Reference

Frequently Asked Questions

Common questions about Fe2Sn, answered from cross-validated data.

What is Fe2Sn?

Fe2Sn is a metallic iron-tin intermetallic compound characterized by its structural diversity and metastable nature.

More questions
What is Fe2Sn used for?
Fe2Sn is used in fundamental materials research, alloy phase stability studies, and crystallographic structural analysis.
What is the band gap of Fe2Sn?
Fe2Sn is computed to be metallic (no band gap) in the reported DFT structures.
Is Fe2Sn a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Fe2Sn thermodynamically stable?
Fe2Sn has a lowest energy above hull of 0.200 eV/atom (above hull).
How many polymorphs of Fe2Sn are known?
30 structures of Fe2Sn are reported across 6 databases, spanning 9 distinct space groups.
How is Fe2Sn synthesized?
Literature-reported routes for Fe2Sn include solid state (3 procedures documented).
What elements does Fe2Sn contain?
Fe2Sn contains Fe and Sn (2 elements).
Where does the data for Fe2Sn come from?
Fe2Sn data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct intermetallic phase, Fe2Sn serves as a representative example of how iron and tin can organize into various metastable configurations. Without direct structural siblings in this specific class, it stands as a unique case study for understanding the synthesis challenges and structural variability inherent in iron-rich tin alloys.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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