BaZrO3

Barium zirconate · BZO

Barium zirconate is a stable, wide-band-gap perovskite oxide used primarily as a high-performance insulating material in electronic and ceramic applications.

Crystal structure of BaZrO3 (tetragonal, I4/mcm (No. 140))
Ground-state structure · Materials Project
Overview

About Barium zirconate

Barium zirconate is a prominent member of the perovskite oxide family, characterized by its robust thermodynamic stability and significant insulating behavior. Its structural integrity and chemical inertness make it a highly reliable material for demanding environments where electronic performance must be maintained under extreme conditions.

Due to its wide-band-gap nature, this compound is frequently utilized as a substrate or buffer layer in the fabrication of thin-film devices. Its ability to remain stable while supporting other functional materials positions it as a cornerstone in the development of advanced ceramic components and high-performance electronic systems.

At a glance

Key Properties

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

Band Gap

3.04–3.12 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

13
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for BaZrO3, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
I4/mcm (No. 140)tetragonal3.120.0000-8.7016.15
Pm-3m (No. 221)cubic3.040.0001-8.7016.14
Pm-3m (No. 221)
I4/mcm (No. 140)
Pm-3m (No. 221)Cubic5.96
Pm-3m (No. 221)Cubic6.44
Pm-3m (No. 221)Cubic6.17
Pm-3m (No. 221)
Pm-3m (No. 221)
Pm-3m (No. 221)
I4/mcm (No. 140)Tetragonal5.98
I4/mcm (No. 140)Tetragonal6.44
Uses

Applications

Where Barium zirconate is used.

Substrate for thin-film depositionBuffer layer in superconducting tapesHigh-temperature dielectric materialProton-conducting ceramic electrolyte
Reference

Frequently Asked Questions

Common questions about Barium zirconate, answered from cross-validated data.

What is BaZrO3?

Barium zirconate is a stable, wide-band-gap perovskite oxide used primarily as a high-performance insulating material in electronic and ceramic applications.

More questions
What is BaZrO3 used for?
Barium zirconate (BaZrO3) is used in substrate for thin-film deposition, buffer layer in superconducting tapes, high-temperature dielectric material, and proton-conducting ceramic electrolyte.
What is the band gap of BaZrO3?
Barium zirconate (BaZrO3) has a DFT-computed band gap of 3.04–3.12 eV across 13 reported structures.
Is BaZrO3 a metal, semiconductor, or insulator?
With a wide band gap up to 3.12 eV it is an insulator / wide-band-gap material.
Is BaZrO3 thermodynamically stable?
Yes — Barium zirconate (BaZrO3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of BaZrO3?
The lowest-energy reported polymorph of Barium zirconate (BaZrO3) is tetragonal symmetry, space group I4/mcm (No. 140).
What is the density of BaZrO3?
The computed density of the ground-state structure of Barium zirconate (BaZrO3) is 6.15 g/cm³.
How many polymorphs of BaZrO3 are known?
13 structures of BaZrO3 are reported across 3 databases, spanning 2 distinct space groups.
What elements does BaZrO3 contain?
Barium zirconate (BaZrO3) contains Ba, O, and Zr (3 elements).
Where does the data for BaZrO3 come from?
BaZrO3 data is cross-referenced from materials_project, jarvis, mpaloe.
Comparison

How It Compares

Within the perovskite oxides class.

Unlike the metallic or magnetic members of the perovskite class such as LaNiO3 or LaMnO3, BaZrO3 is a chemically inert insulator that lacks the complex electronic transitions found in transition-metal-rich variants. While materials like BaTiO3 are prized for their ferroelectric properties, BaZrO3 is primarily valued for its structural stability and dielectric performance, serving as a reliable structural scaffold compared to the more reactive or magnetically active perovskites in the group.

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Related Compounds

Other Perovskite Oxides in the database.

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.

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