# Possible High-Temperature Superconductivity in Hygrogenated Fluorine

## TL;DR

This study explores the potential for high-temperature superconductivity in H₃F, using computational methods to evaluate its electronic properties and stability, inspired by recent findings in similar hydrogen-rich compounds.

## Contribution

The paper introduces a computational investigation of H₃F's superconducting potential, highlighting its large Hopfield parameter as a promising indicator for high Tc.

## Key findings

- Large Hopfield parameters suggest strong electron-phonon coupling.
- Elastic constants are inconclusive on material stability.
- Potential for Tc comparable to or higher than H₃S.

## Abstract

Recent computational studies confirmed by experiment have established the occurrence of superconducting temperatures, $T_c$, near 200 K when the pressure is close to 200 GPa in the compound H$_3S$. Motivated by these findings we investigate in this work the possibility of discovering high-temperature superconductivity in the material H$_3$F. We performed linearized augmented plane wave(LAPW) calculations followed by the determination of the angular momentum components of the density of states, the scattering phase shifts at the Fermi level and the electron-ion matrix element known as the Hopfield parameter. Our calculated Hopfield parameters are much larger than those found in H$_3$S suggesting that they may lead to large electron-phonon coupling constant and hence a large Tc similar or even larger than that of H$_3$S. However, calculations of elastic constants are inconclusive regarding the stability of this material.