▎ 摘　　要

In this paper, we show how the diffraction of light beams is balanced by the nonlinearity of graphene/hexagonal boron nitride heterostructures, which discretely occurs in the very thin graphene layers, forming spatial solitons. We also discuss the effects of the layer number and the peak E-field amplitude on the soliton width. (C) 2018 Elsevier B.V. All rights reserved.