Tb

Terbium · Tb

Terbium is a stable, metallic rare-earth element widely used in high-performance magnets, phosphors, and advanced electronic components.

Tb
Crystal structure of Tb
Ground-state structure · Materials Project
Overview

About Terbium

Terbium is a metallic lanthanide element characterized by its distinct position on the convex hull, indicating high thermodynamic stability. As a rare-earth metal, it exhibits complex magnetic behavior and is highly valued for its ability to modify the properties of other materials when used as a dopant or alloying agent.

Its importance stems from its widespread utility in high-performance magnets and specialized lighting applications. Due to its metallic electronic character, it serves as a foundational component in modern solid-state devices where magnetic responsiveness and stability are essential requirements for long-term performance.

At a glance

Key Properties

Cross-validated computational properties for Terbium, aggregated across 4 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

24
4 databases, 5 space groups
Validation

Cross-Source DFT Agreement

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

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

2
jarvis, materials_project

Space Group Consensus

All match
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Tb.

Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Sol Gel
Procedure available · ceder_sol_gel
Uses

Applications

Where Terbium is used.

High-performance permanent magnetsSolid-state lighting and phosphorsMagnetostrictive alloysDopant in laser materialsElectronic device components
Reference

Frequently Asked Questions

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

What is Tb?

Terbium is a stable, metallic rare-earth element widely used in high-performance magnets, phosphors, and advanced electronic components.

More questions
What is Tb used for?
Terbium (Tb) is used in high-performance permanent magnets, solid-state lighting and phosphors, magnetostrictive alloys, dopant in laser materials, and electronic device components.
What is the band gap of Tb?
Terbium (Tb) is computed to be metallic (no band gap) in the reported DFT structures.
Is Tb a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Tb thermodynamically stable?
Yes — Terbium (Tb) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Tb are known?
24 structures of Tb are reported across 4 databases, spanning 5 distinct space groups.
How is Tb synthesized?
Literature-reported routes for Tb include sol gel (10 procedures documented).
What elements does Tb contain?
Terbium (Tb) contains Tb (1 element).
Where does the data for Tb come from?
Tb data is cross-referenced from latticegraph.
Comparison

How It Compares

As a pure metallic element, Terbium occupies a fundamental role in the lanthanide series. It is distinguished by its specific magnetic transitions and its high degree of thermodynamic stability, which makes it a reliable choice for demanding industrial applications compared to more reactive or less abundant rare-earth counterparts.

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

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