BaHfS3

BaHfS3 is a stable, semiconducting ternary sulfide material used in advanced materials research.

BaHfS
Crystal structure of BaHfS3 (orthorhombic, Pnma (No. 62))
Ground-state structure · Materials Project
Overview

About BaHfS3

BaHfS3 is a complex ternary sulfide that exhibits semiconducting electronic behavior. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline material of significant interest for structural and functional research.

Its unique composition makes it a versatile candidate for materials science investigations. Given its status as a well-documented structure across multiple databases, it serves as a foundational material for exploring the interplay between heavy metal cations and sulfur-based anionic frameworks.

At a glance

Key Properties

Cross-validated computational properties for BaHfS3, aggregated across 6 databases.

Band Gap

0.27–1.37 eV
Range across DFT structures · ground state: narrow gap

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

Stable
5 DFT sources

Structures

22
6 databases, 5 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of BaHfS3. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: high

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

3
jarvis, materials_project, oqmd

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for BaHfS3, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
——1.370.0000-2.015—
Pnma (No. 62)orthorhombic1.250.0000-6.9975.55
Pnma (No. 62)orthorhombic0.860.0000-2.023—
Pnma (No. 62)orthorhombic0.870.0075-6.9905.51
Pm-3m (No. 221)cubic0.800.0252-1.997—
——0.800.0260-1.989—
Pm-3m (No. 221)cubic0.710.0283-6.9695.44
R3m (No. 160)trigonal0.840.0284-6.9695.44
Pm-3m (No. 221)cubic0.740.0290-1.994—
——0.270.0471-1.968—
Cmmm (No. 65)orthorhombic0.001.5709-5.4275.77
Pnma (No. 62)orthorhombic———5.59
Uses

Applications

Where BaHfS3 is used.

Optoelectronic device researchSemiconductor materials developmentSolid-state chemistry studies
Reference

Frequently Asked Questions

Common questions about BaHfS3, answered from cross-validated data.

What is BaHfS3?

BaHfS3 is a stable, semiconducting ternary sulfide material used in advanced materials research.

More questions
What is BaHfS3 used for?
BaHfS3 is used in optoelectronic device research, semiconductor materials development, and solid-state chemistry studies.
What is the band gap of BaHfS3?
BaHfS3 has a DFT-computed band gap of 0.27–1.37 eV across 22 reported structures. Standard DFT underestimates band gaps, so the measured gap is typically larger.
Is BaHfS3 a metal, semiconductor, or insulator?
DFT predicts a band gap of up to 1.37 eV (a semiconductor). Measured gaps are typically larger.
Is BaHfS3 thermodynamically stable?
Yes — BaHfS3 sits on the convex hull (energy above hull 0 eV/atom), i.e. stable.
What is the crystal structure of BaHfS3?
The reference structure of BaHfS3 is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of BaHfS3?
The computed density of the ground-state structure of BaHfS3 is 5.55 g/cm³.
How many polymorphs of BaHfS3 are known?
22 structures of BaHfS3 are reported across 6 databases, spanning 5 distinct space groups.
What elements does BaHfS3 contain?
BaHfS3 contains Ba, Hf, and S (3 elements).
Where does the data for BaHfS3 come from?
BaHfS3 data is cross-referenced from oqmd, materials_project, jarvis, mpaloe, alexandria, nomad.
Comparison

How It Compares

As a distinct ternary sulfide, BaHfS3 occupies a specialized niche in materials science, serving as a primary reference point for investigating the stability and electronic properties of barium-hafnium-sulfur systems.

Data sources & attribution
  • oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
  • materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
  • jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
  • mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
  • alexandria — Data from Alexandria. Cite: Schmidt et al., npj Comput. Mater. 10, 200 (2024). (CC-BY-4.0)
  • nomad — Data from NOMAD (nomad-lab.eu). Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019). (CC-BY-4.0)

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