BeSiTc2

BeSiTc2 is a semiconducting ternary compound containing beryllium, silicon, and tellurium that is currently of interest for theoretical materials research.

BeSiTc
Crystal structure of BeSiTc2 (orthorhombic, Immm (No. 71))
Ground-state structure · Materials Project
Overview

About BeSiTc2

BeSiTc2 is a complex ternary compound composed of beryllium, silicon, and tellurium. As a semiconducting material, it represents an interesting subject for theoretical investigation into the bonding interactions between these specific elements. Its electronic character suggests potential utility in specialized solid-state physics research, though its practical implementation remains limited by its structural characteristics. Although it has been identified across multiple databases, its thermodynamic status indicates that it sits above the stability hull, suggesting it may be difficult to synthesize or maintain in a stable phase under standard conditions. This makes it a primary candidate for computational studies aimed at understanding the formation energy and structural stability of exotic ternary chalcogenides.

At a glance

Key Properties

Cross-validated computational properties for BeSiTc2, aggregated across 4 databases.

Band Gap

0.26 eV
Range across DFT structures

Energy Above Hull

3.511 eV/atom
Best (lowest) across sources

Stability

Above hull
3 DFT sources

Structures

5
4 databases, 3 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for BeSiTc2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Immm (No. 71)orthorhombic0.263.5113-4.2930.59
P4mm (No. 99)
7.48
P2/m (No. 10)
Uses

Applications

Where BeSiTc2 is used.

Solid-state physics researchComputational materials modeling
Reference

Frequently Asked Questions

Common questions about BeSiTc2, answered from cross-validated data.

What is BeSiTc2?

BeSiTc2 is a semiconducting ternary compound containing beryllium, silicon, and tellurium that is currently of interest for theoretical materials research.

More questions
What is BeSiTc2 used for?
BeSiTc2 is used in solid-state physics research and computational materials modeling.
What is the band gap of BeSiTc2?
BeSiTc2 has a DFT-computed band gap of 0.26 eV across 5 reported structures.
Is BeSiTc2 a metal, semiconductor, or insulator?
With a band gap up to 0.26 eV it is a semiconductor.
Is BeSiTc2 thermodynamically stable?
BeSiTc2 has a lowest energy above hull of 3.511 eV/atom (above hull).
What is the crystal structure of BeSiTc2?
The lowest-energy reported polymorph of BeSiTc2 is orthorhombic symmetry, space group Immm (No. 71).
What is the density of BeSiTc2?
The computed density of the ground-state structure of BeSiTc2 is 0.59 g/cm³.
How many polymorphs of BeSiTc2 are known?
5 structures of BeSiTc2 are reported across 4 databases, spanning 3 distinct space groups.
What elements does BeSiTc2 contain?
BeSiTc2 contains Be, Si, and Tc (3 elements).
Where does the data for BeSiTc2 come from?
BeSiTc2 data is cross-referenced from materials_project, nomad, jarvis, omat24.
Comparison

How It Compares

As an unclassified material with limited experimental precedent, BeSiTc2 serves as a unique case study in the exploration of metastable ternary phases. Unlike more conventional semiconductors that occupy the ground state, this compound highlights the challenges of synthesizing materials that exist above the thermodynamic hull, providing researchers with a benchmark for evaluating the limits of structural stability in beryllium-silicon-tellurium systems.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).

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