Rashba spin-orbit interaction enhanced by graphene in-plane deformations

• DOI: 10.5488/cmp.20.13702
• Publication Date: 2017-03-28T10:23:48Z
• Authors: Berche; Mireles; Medina
• Keywords: Spin–orbit interaction

Graphene consists in a single-layer carbon crystal where 2p z electrons display linear dispersion relation the vicinity of Fermi level, conveniently described by massless Dirac equation 2+1 spacetime.Spin-orbit effects open gap band structure and offer perspectives for manipulation conducting spin.Ways to manipulate spin-orbit couplings graphene have been generally assessed proximity metals that do not compromise mobility unperturbed system are likely induce strain layer.In this work we explore U(1) × SU(2) gauge fields result from uniform stretching sheet under perpendicular electric field.Considering such deformations is particularly relevant due counter-intuitive enhancement Rashba coupling between 30-50% small bond well known tight-binding DFT calculations.We report accessible changes can be operated K points as function deformation strength direction.