MgBeC: A potential MgB2-like Superconductor

TL;DR

This paper predicts that magnesium beryllium carbide (MgBeC) could be a superconductor with a transition temperature near 39K, similar to MgB2, based on symmetry considerations of elemental properties.

Contribution

The study proposes MgBeC as a new MgB2-like superconductor, extending symmetry-based predictions to identify potential high-Tc materials.

Findings

MgBeC is predicted to have a Tc near 39K.

Symmetry considerations of electronegativity, valence electrons, atomic number, and formula weight support the prediction.

MgBeC is identified as a promising candidate for superconductivity similar to MgB2.

Abstract

Intensive and extensive searches for superconductivity in materials iso-structural, iso-electronic and iso-valent with magnesium diboride, MgB2, have not produced superconductors with Tc close to 39K. Recently, we proposed lithium magnesium nitride, LiMgN, as a potential MgB2-like superconductor, based on symmetry considerations of averages of electronegativity, valence electrons, atomic number and formula weight. Our studies show that there are other materials that meet the same symmetry considerations like LiMgN. Here we propose that magnesium beryllium carbide, MgBeC, one of such materials, should be a superconductor like MgB2, with Tc near 39K.