CaGeO3

calcium germanate · CaGeO3

Calcium germanate is a stable, insulating inorganic compound used primarily in structural research and materials science studies.

CaGeO
Crystal structure of CaGeO3
Ground-state structure · Materials Project
Overview

About calcium germanate

Calcium germanate is a stable inorganic compound that exhibits insulating electronic behavior. As a member of the germanate family, it maintains structural integrity under standard conditions, making it a reliable subject for fundamental materials science investigations.

Its wide-gap insulating nature positions it as a candidate for specialized dielectric applications. The compound is characterized by significant structural diversity, with numerous reported configurations that highlight its versatile coordination chemistry in solid-state systems.

At a glance

Key Properties

Cross-validated computational properties for calcium germanate, aggregated across 5 databases.

Band Gap

0.50–3.58 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

26
5 databases, 6 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of CaGeO3. 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
Uses

Applications

Where calcium germanate is used.

Solid-state researchDielectric material studiesCrystal structure analysis
Reference

Frequently Asked Questions

Common questions about calcium germanate, answered from cross-validated data.

What is CaGeO3?

Calcium germanate is a stable, insulating inorganic compound used primarily in structural research and materials science studies.

More questions
What is CaGeO3 used for?
calcium germanate (CaGeO3) is used in solid-state research, dielectric material studies, and crystal structure analysis.
What is the band gap of CaGeO3?
calcium germanate (CaGeO3) has a DFT-computed band gap of 0.50–3.58 eV across 26 reported structures.
Is CaGeO3 a metal, semiconductor, or insulator?
With a wide band gap up to 3.58 eV it is an insulator / wide-band-gap material.
Is CaGeO3 thermodynamically stable?
Yes — calcium germanate (CaGeO3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CaGeO3 are known?
26 structures of CaGeO3 are reported across 5 databases, spanning 6 distinct space groups.
What elements does CaGeO3 contain?
calcium germanate (CaGeO3) contains Ca, Ge, and O (3 elements).
Where does the data for CaGeO3 come from?
CaGeO3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a thermodynamically stable phase, calcium germanate serves as a foundational reference point for studying the structural evolution of germanate-based materials. It represents a key example of how calcium and germanium cations organize within an oxygen framework to achieve a robust, low-energy configuration.

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

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