title: Strain induced shift of Dirac points and the pseudo-magnetic field in graphene.
abstract: We prove that the strain induced shift of the Dirac points in graphene is a curl field if the strain is nonuniform. This curl field provides a geometrical explanation of the strain induced pseudo-magnetic field. We also prove that the Dirac points must be confined within two triangles, each one having one-eighth the area of the Brillouin zone.
authors: Center for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education, and School of Physics, Northeast Normal University, Changchun 130024, People's Republic of China. yanght653@nenu.edu.cn
authors: Hua Tong
authors: HT
authors: Yang