Trigonal warping induced unusual spin texture and strong spin polarization in graphene with the Rashba effect
Trigonal warping induced unusual spin texture and strong spin polarization in graphene with the Rashba effect
We study the electronic and scattering properties of graphene with moderate Rashba spin-orbit coupling (SOC). The Rashba SOC in graphene tends to distort the band structure and gives rise to a trigonally warped Fermi surface. For electrons at a pronouncedly warped Fermi surface, the spin direction exhibits a staircase profile …