Browsing by Subject "Electrical spin injection"

Now showing items 1-5 of 5

    • Article  

      Efficient electrical spin injection from a magnetic metal/tunnel barrier contact into a semiconductor 

      Hanbicki, A. T.; Jonker, B. T.; Itskos, Grigorios; Kioseoglou, G.; Petrou, Athos Chariton (2002)
      We report electrical spin injection from a ferromagnetic metal contact into a semiconductor light emitting diode structure with an injection efficiency of 30% which persists to room temperature. The Schottky barrier formed ...
    • Conference Object  

      Electrical spin injection and band offsets in an n-type ferromagnetic semiconductor heterostructure: n-CdCr2Se4/AlGaAs/GaAs 

      Jonker, B. T.; Hanbicki, A. T.; Kioseoglou, G.; Li, C. H.; Stroud, R. M.; Sullivan, J. M.; Erwin, S. C.; Lüpke, G.; Zhao, H. B.; Ren, Y. H.; Sun, B.; Itskos, Grigorios; Mallory, R.; Yasar, M.; Petrou, Athos Chariton (Institute of Electrical and Electronics Engineers Inc., 2003)
      Electrical spin injection and band offsets in an n-type ferromagnetic semiconductor heterostructure of CdCr2Se4-AlGaAs-GaAs are studied. Epitaxially grown CdCr2Se4 films exhibit hysteresis behavior with significant remanence, ...
    • Conference Object  

      Electrical spin injection from a magnetic schottky tunnel contact into a semiconductor 

      Jonker, B. T.; Hanbicki, A. T.; Itskos, Grigorios; Kioseoglou, G.; Petrou, Athos Chariton (2002)
      A report on the electrical spin injection from a magnetic Schottky tunnel contact into a semiconductor was presented. The temperature dependence of the optical polarization and corresponding spin injection efficiency was ...
    • Conference Object  

      Oblique hanle measurements of InAs/GaAs quantum dot spin-light emitting diodes 

      Itskos, Grigorios; Harbord, E.; Clowes, S. K.; Clarke, E.; Van Dorpe, P.; Van Roy, W.; Cohen, L. F.; Murray, R. (2007)
      We report here electrical spin injection through an Fe contact into a quantum dot light emitting diode structure using the oblique Hanle geometry. The measured spin polarization in the ground state of the dots is estimated ...
    • Article  

      Oblique Hanle measurements of InAsGaAs quantum dot spin-light emitting diodes 

      Itskos, Grigorios; Harbord, E.; Clowes, S. K.; Clarke, E.; Cohen, L. F.; Murray, R.; Van Dorpe, P.; Van Roy, W. (2006)
      We report on studies of electrical spin injection from ferromagnetic Fe contacts into semiconductor light emitting diodes containing single layers of InAsGaAs self-assembled quantum dots (QDs). An oblique magnetic field ...