Yurov V.
Candidate of Physics and Mathematics Sciences, Associate Professor
KarTU, Karaganda, Kazakhstan
Zhangozin K.
Candidate of Physics and Mathematics Sciences, Associate Professor,
TSK Vostok LLP, Ust-Kamenogorsk, Republic of Kazakhstan

Abstract
In the article, we compare a graphene monolayer with the Peierls–Nabarro barrier, which is equal to the force of interatomic interaction. This barrier is calculated from the formation energy of monovacancies, divacancies and other structural defects and the length of the newly formed carbon bond. It is shown that the Peierls–Nabarro barrier is maximum for a monovacancy and then decreases for complex defects.

 Keywords: graphene, monolayer, monovacancy, divacancy, defect, carbon, barrier, dislocation.