Browsing by Author "ARCHER, THOMAS"

Now showing items 1-4 of 4

    • Magnetic interaction of Co ions near the {10\bar{1}0} ZnO surface 

      SANVITO, STEFANO; ARCHER, THOMAS (2010)
      Co-doped ZnO is the prototypical dilute magnetic oxide showing many of the characteristics of ferromagnetism. The microscopic origin of the long range order however remains elusive, since the conventional mechanisms for ...

    • Magnetism of wurtzite CoO nanoclusters 

      SANVITO, STEFANO; ARCHER, THOMAS (2010)
      The possibility that the apparent room-temperature ferromagnetism, often measured in Co-doped ZnO, is due to uncompensated spins at the surface of wurtzite CoO nanoclusters is investigated by means of a combination of ...

    • Prediction of large bias-dependent magnetoresistance in al l-oxide magnetic tunnel junctions with a ferroelectric barrier 

      SANVITO, STEFANO; CAFFREY, NUALA; ARCHER, THOMAS; RUNGGER, IVAN (2011)
      All-oxide magnetic tunnel junctions (MTJs) incorporating functional materials as insulating barriers have the potential of becoming the founding technology for novel multifunctional devices. We investigate, by first-principles ...

    • Spin transport in higher n-acene molecules 

      SANVITO, STEFANO; ARCHER, THOMAS; RUNGGER, IVAN (2011)
      We investigate the spin-transport properties of molecules belonging to the acenes series by using density functional theory combined with the nonequilibrium Green's function approach to electronic transport. While short ...