In
Indium · Metallic Indium
Indium is a soft, silvery-white post-transition metal that is highly malleable and easily fusible. It is primarily utilized in the production of transparent conductive coatings and as a component in various specialty alloys and semiconductor materials.
In
Overview
Key Properties
Cross-validated computational properties for Indium, aggregated across 5 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.
Metallic / not reported
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
58
5 databases, 7 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of In. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
1.00 / 1.00
Trust tier: high
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
3
jarvis, materials_project, nomad
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for In, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 0.00 | 0.0000 | -22.579 | 7.22 |
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.0045 | -22.574 | 7.20 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0047 | -22.574 | 7.21 |
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0071 | -22.571 | 7.18 |
| R-3m (No. 166) | trigonal | 0.00 | 0.0075 | -22.571 | 7.22 |
| I-43m (No. 217) | cubic | 0.00 | 0.0101 | -22.568 | 7.11 |
| Im-3m (No. 229) | cubic | 0.00 | 0.0278 | -22.551 | 7.14 |
| No. 0 | unknown | — | — | — | 3.64 |
| No. 0 | unknown | — | — | — | 3.64 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 7.20 |
| No. 0 | unknown | — | — | — | 1.83 |
| No. 0 | unknown | — | — | — | 1.83 |
Uses
Applications
Where Indium is used.
Indium tin oxide coatings for liquid crystal displaysLow-melting point alloysSemiconductor dopantsSoldering and thermal interface materialsVacuum seal components
Reference
Frequently Asked Questions
Common questions about Indium, answered from cross-validated data.
What is In?
Indium is a soft, silvery-white post-transition metal that is highly malleable and easily fusible. It is primarily utilized in the production of transparent conductive coatings and as a component in various specialty alloys and semiconductor materials.
More questions
What is In used for?
Indium (In) is used in indium tin oxide coatings for liquid crystal displays, low-melting point alloys, semiconductor dopants, soldering and thermal interface materials, and vacuum seal components.
What is the band gap of In?
Indium (In) is computed to be metallic (no band gap) in the reported DFT structures.
Is In a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is In thermodynamically stable?
Yes — Indium (In) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of In?
The lowest-energy reported polymorph of Indium (In) is cubic symmetry, space group Fm-3m (No. 225).
What is the density of In?
The computed density of the ground-state structure of Indium (In) is 7.22 g/cm³.
How many polymorphs of In are known?
58 structures of In are reported across 5 databases, spanning 7 distinct space groups.
What elements does In contain?
Indium (In) contains In (1 element).
Where does the data for In come from?
In data is cross-referenced from materials_project, cod, mpaloe, nomad.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- mpaloe — Data from mpaloe.
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
Analyze In in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →