# What is exfoliation energy per unit area?

I see in many sources the exfoliation energy defined with the unit $$meV/A^2$$ I frankly don't understand how it's calculated and I couldn't find any mathematical formula for that. its unit confuses me. I was wondering if anyone could explain the concept mathematically. And how can I convert it into the interlayer binding energy ($$meV/Atom$$)

• Could you please provide some sources? It will allow us to better help you out. – kskinnerx16 Aug 28 '20 at 11:33
• Sure. Here it is: pubs.acs.org/doi/pdf/10.1021/acs.jpclett.0c00348 – user1263 Aug 28 '20 at 11:43
• Welcome to our site! – Camps Aug 28 '20 at 14:39