CErO4

CErO4 is a metastable, semiconducting ternary oxide containing cerium, erbium, and oxygen used in specialized materials science research.

CErO
Crystal structure of CErO4
Ground-state structure · Materials Project
Overview

About CErO4

CErO4 is a complex inorganic compound composed of cerium, erbium, and oxygen. As a semiconducting material, it exhibits electronic behavior that makes it a subject of interest for researchers investigating specialized functional oxides. Its metastable nature suggests that its synthesis and structural integrity are highly sensitive to processing conditions, requiring precise control to maintain its specific phase. The compound represents an intriguing intersection of rare-earth chemistry and oxide materials, offering potential pathways for developing advanced electronic or optical components. Because it exists in a metastable state, it is often studied to understand the limits of structural stability within complex ternary oxide systems.

At a glance

Key Properties

Cross-validated computational properties for CErO4, aggregated across 3 databases.

Band Gap

0.14–0.79 eV
Range across DFT structures

Energy Above Hull

0.048 eV/atom
Best (lowest) across sources

Stability

Metastable
1 DFT source

Structures

4
3 databases, 3 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of CErO4. 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
materials_project, nomad

Space Group Consensus

All match
Uses

Applications

Where CErO4 is used.

Advanced materials researchSemiconductor development studiesRare-earth oxide structural analysis
Reference

Frequently Asked Questions

Common questions about CErO4, answered from cross-validated data.

What is CErO4?

CErO4 is a metastable, semiconducting ternary oxide containing cerium, erbium, and oxygen used in specialized materials science research.

More questions
What is CErO4 used for?
CErO4 is used in advanced materials research, semiconductor development studies, and rare-earth oxide structural analysis.
What is the band gap of CErO4?
CErO4 has a DFT-computed band gap of 0.14–0.79 eV across 4 reported structures.
Is CErO4 a metal, semiconductor, or insulator?
With a band gap up to 0.79 eV it is a semiconductor.
Is CErO4 thermodynamically stable?
CErO4 has a lowest energy above hull of 0.048 eV/atom (metastable).
How many polymorphs of CErO4 are known?
4 structures of CErO4 are reported across 3 databases, spanning 3 distinct space groups.
What elements does CErO4 contain?
CErO4 contains C, Er, and O (3 elements).
Where does the data for CErO4 come from?
CErO4 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique ternary oxide, CErO4 occupies a specialized niche in materials research where its semiconducting nature distinguishes it from more common, highly stable insulating oxides. Without direct structural siblings in this specific class, it serves as a critical reference point for understanding how the integration of erbium into cerium-based oxide frameworks influences electronic transport and structural metastability.

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

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