Stress-controlled Poisson ratio of a crystalline membrane: Application to graphene

I. S. Burmistrov, I. V. Gornyi V. Yu. Kachorovskii, M. I. Katsnelson +2

We demonstrate that a key elastic parameter of a suspended crystalline membrane---the Poisson ratio (PR) $\nu$---is a non-trivial function of the applied stress $\sigma$ and of the system…