Now showing items 2-9 of 9

  • Dataset of Observation of T2-like coherent optical phonons in epitaxial Ge2Sb2Te5/GaSb(001) films 

    Shalini, Ashawaraya; Liu, Y.; Al-Jarah, Uday Ali Sabeeh; Srivastava, G.P.; Wright, C. David; Katmis, F.; Braun, W.; Hicken, R.J. (University of Exeter, 2013-10-04)
    The phonon spectrum of Ge2Sb2Te5 is a signature of its crystallographic structure and underlies the phase transition process used in memory applications. Epitaxial materials allow coherent optical phonons to be studied in ...
  • Effect of sink layer thickness on damping in CoMnGe (5 nm) / Ag (6 nm) / NiFe (x nm) spin valves 

    Valkass, Robert Alexander James; Shelford, Leigh R; Durrant, Chris J; Figueroa, Adriana; Baker, Alex A; Shafer, Padraic; Arenholz, Elke; Childress, Jeffrey R; Katine, Jordan A; van der Laan, Gerrit; Hicken, Robert J (University of Exeter, 2016-04-04)
    In spin valve structures the damping of a ferromagnetic layer driven at resonance can be modified by the transfer of spin angular momentum into a ‘sink’ ferromagnetic layer. This effect, known as spin pumping, is interface ...
  • Nonlinear optical excitation of plasmons in graphene: intensity and polarisation dependences 

    Constant, Thomas (Royal Society, 2016-06-15)
    Recently, we demonstrated an all-optical coupling scheme for plasmons, which takes advantage of the intrinsic nonlinear optical response of graphene. Difference frequency mixing using free-space, visible light pulses ...
  • Observation of vortex dynamics in arrays of nanomagnets 

    Yu, W.; Keatley, Paul Steven; Gangmei, Prim; Marcham, Max K.; Loughran, T. H. J.; Hicken, R.J.; Cavill, Stuart A.; van der Laan, Gerrit; Childress, J.R.; Katine, J.A. (American Physical Society, 2015-05-22)
    Vortex dynamics within arrays of square ferromagnetic nanoelements have been studied by time-resolved scanningKerr microscopy (TRSKM),while x-ray photoemission electronmicroscopy has been used to investigate the equilibrium ...
  • ORE demo 

    Alastair, Hibbins (Uni of Exeter, 2013-10-04)
    An abstract
  • Resonantly induced transparency for metals with low angular dependence (dataset) 

    Camacho, Miguel; Hibbins, Alastair P.; Sambles, J. Roy (AIP, 2016-12-01)
    Thin (sub skin-depth) metal layers are known to almost completely reflect radiation at microwave frequencies. It has previously been shown that this can be overcome at resonance via the addition of closely spaced periodic ...
  • Surface lattice resonances in plasmonic arrays of asymmeric disc dimers (dataset) 

    Humphrey, Alastair D; Meinzer, Nina; Starkey, Timothy A; Barnes, William L. (University of Exeter, 2016-03)
    We study regular wavelength scale arrays of metallic dimers. By employing dimers made up of two different sized discs, we are able to couple to array-based collective surface lattice resonances of both bright and dark, ...
  • Time-resolved scanning Kerr microscopy of flux beam formation in hard disk write heads (dataset) 

    Valkass, Robert Alexander James; Spicer, Timothy M; Burgos Parra, Erick; Hicken, Robert James; Bashir, Muhammad A; Gubbins, Mark A; Czoschke, Peter J; Lopusnik, Radek (University of Exeter, 2016-04-14)
    Data behind the published paper "Time-resolved scanning Kerr microscopy of flux beam formation in hard disk write heads"