Scattering from spin-polarized charged impurities in graphene

Autor: Vierimaa, Ville, Fan, Zheyong, Harju, Ari
Rok vydání: 2016
Předmět:
Zdroj: Phys. Rev. B 95, 041401 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.95.041401
Popis: We study the spin relaxation of charge carriers in graphene in the presence of spin-polarized charged impurities by calculating the time evolution of initially polarized state. The spin relaxation time shows completely different energy behaviour for short-ranged and long-ranged spin scatterers and can be used to identify the dominant source of spin scattering. Our results agree well with recent experimental findings and indicate that their spin relaxation is likely caused by long-ranged scatterers.
Comment: 5 pages, 4 figures
Databáze: arXiv