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Updated: Jun 12, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

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Published on: March 24, 2018

Robust massless Dirac fermions in hydro-/halogenated trigonal borophene.

L-B Meng¹, D X Liu¹, S Ni^1,2

¹National Key Laboratory of Plasma Physics, Research Center of Laser Fusion, CAEP, Mianyang 621900, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|September 23, 2024

Summary

Researchers discovered new two-dimensional (2D) semimetals, delta6-B3X, exhibiting graphene-like Dirac fermions. These stable materials offer exciting possibilities for advanced electronic applications and exploring novel 2D Dirac states.

Keywords:

Dirac material borophene first-principles calculation hydro-/halogenation

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Published on: October 12, 2019

Area of Science:

Condensed Matter Physics
Materials Science
Computational Chemistry

Background:

Graphene's unique electronic properties drive the search for new two-dimensional (2D) Dirac materials.
Discovering materials with massless Dirac fermions is crucial for next-generation electronics.

Purpose of the Study:

To identify novel 2D semimetals with graphene-like massless Dirac fermions.
To investigate the electronic and stability properties of hydro-/halogen-embedded trigonal delta6-borophene.

Main Methods:

First-principles electronic structure calculations.
Analysis of electronic band structures and stability using computational methods.

Main Results:

Identification of delta6-B3X (X = H, F, Cl) as 2D semimetals possessing Dirac cone states.
Demonstration of robust electronic stabilization through charge transfer between boron atoms and adatoms.
Prediction of high energetic, dynamic, and thermal stabilities for these borophene derivatives.

Conclusions:

The novel delta6-B3X materials exhibit stable, graphene-like Dirac fermionic states.
These findings open new avenues for exploring 2D Dirac states in boron-based materials.
The predicted stability and substrate compatibility suggest potential experimental realization.