TbN
terbium nitride · terbium(III) nitride
Terbium nitride is a binary inorganic compound composed of terbium and nitrogen. It is primarily studied for its magnetic and electronic properties in the field of rare-earth materials science.
NTb
Overview
Key Properties
Cross-validated computational properties for terbium nitride, aggregated across 4 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.
0.01 eV
Range across DFT structures
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)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
4 databases, 3 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for TbN, 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 | 0.01 | 0.0000 | -22.155 | 9.61 |
| Fm-3m (No. 225) | — | — | — | — | — |
| C2/m (No. 12) | Monoclinic | — | — | — | 5.36 |
| No. 0 | unknown | — | — | — | 2.39 |
| C2/m (No. 12) | Monoclinic | — | — | — | 8.05 |
| C2/m (No. 12) | Monoclinic | — | — | — | 8.18 |
Uses
Applications
Where terbium nitride is used.
semiconductor researchmagnetic material studiesrare-earth metal processing
Reference
Frequently Asked Questions
Common questions about terbium nitride, answered from cross-validated data.
What is TbN?
Terbium nitride is a binary inorganic compound composed of terbium and nitrogen. It is primarily studied for its magnetic and electronic properties in the field of rare-earth materials science.
More questions
What is TbN used for?
terbium nitride (TbN) is used in semiconductor research, magnetic material studies, and rare-earth metal processing.
What is the band gap of TbN?
terbium nitride (TbN) has a DFT-computed band gap of 0.01 eV across 6 reported structures.
Is TbN a metal, semiconductor, or insulator?
With a near-zero band gap it behaves as a (semi)metal.
Is TbN thermodynamically stable?
Yes — terbium nitride (TbN) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of TbN?
The lowest-energy reported polymorph of terbium nitride (TbN) is cubic symmetry, space group Fm-3m (No. 225).
What is the density of TbN?
The computed density of the ground-state structure of terbium nitride (TbN) is 9.61 g/cm³.
How many polymorphs of TbN are known?
6 structures of TbN are reported across 4 databases, spanning 3 distinct space groups.
What elements does TbN contain?
terbium nitride (TbN) contains N and Tb (2 elements).
Where does the data for TbN come from?
TbN data is cross-referenced from materials_project, jarvis, mpaloe, cod.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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