Hi, I'm studying graphene nowadays with paper 

"Electric Field Effect in Atomically Thin Carbon Films" .

In this paper, there is a description about the linear dependence btw the fermi energy and SdHO frequency in Fig.3 and Supplementary information.

Specifically, in supplementary information, there is a formula below ( I uploaded ) 

Is there anyone who knows where this formula came from? 

I couldn't find any clue for this. 

Thanks for reading this! :)

More Myung-Joo Park's questions See All
Similar questions and discussions