The elastic constants calculation on graphene gives me the value 115GPa. But the correct value is 1TPa. How can I correct this?

The elastic constants of graphene are calculated using castep code. I am getting the value of C11 as 115GPa and youngs modulus as 112 GPa. But the reported value is 1TPa. I do not know where i am...

22 January 2016 3,757 1 View