# Conserving controversies of melting line of graphite and graphene

## TL;DR

This paper compares computational models and ab-initio simulations to address longstanding controversies regarding the melting line of graphite and graphene, highlighting discrepancies in empirical models and discussing graphene melting.

## Contribution

It provides a comparative analysis of models and simulations, revealing limitations of empirical models in accurately predicting liquid carbon properties.

## Key findings

- Empirical models fail to reproduce liquid carbon properties accurately.
- Ab-initio simulations offer more reliable insights into melting behavior.
- Discussion on the melting of graphene adds new perspective.

## Abstract

Investigation of melting line of graphite and liquid carbon has long history. However, up to now there are still numerous controversies in the field, for instance, the melting temperatures obtained in different experiments are in very bad agrement. In the present paper we compare several models of carbon widely used in computational studies and the results of ab-initio simulations of liquid carbon. We show that the empirical models fail to reproduce the properties of liquid carbon correctly. We also discuss the "melting" of graphene.