Enhanced Spin Injection in Molecularly Functionalized Graphene via Ultrathin Oxide Barriers

  title={Enhanced Spin Injection in Molecularly Functionalized Graphene via Ultrathin Oxide Barriers},
  author={J. C. Toscano-Figueroa and N. Natera-Cordero and D A Bandurin and Charles R. Anderson and Victor H. Guarochico-Moreira and Irina V. Grigorieva and Ivan J. Vera-Marun},
Realisation of practical spintronic devices relies on the ability to create and detect pure spin currents. In graphene-based spin valves this is usually achieved by injection of spin-polarized electrons from ferromagnetic contacts via a tunnel barrier, with Al2O3 and MgO used most widely as barrier materials. However, the requirement to make these barriers sufficiently thin often leads to pinholes and low contact resistances which in turn results in low spin injection efficiencies, typically 5… 

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