4 papers
Electron Spin Dynamics and Hyperfine Interactions in Fe/Al_0.1Ga_0.9As/GaAs Spin Injection Heterostructures
J. Strand, X. Lou, C. Adelmann +4
We have studied hyperfine interactions between spin-polarized electrons and lattice nuclei in Al_0.1Ga_0.9As/GaAs quantum well (QW) heterostructures. The spin-polarized electrons a…
Spin Injection and Relaxation in Ferromagnet-Semiconductor Heterostructures
C. Adelmann, X. Lou, J. Strand +2
We present a complete description of spin injection and detection in Fe/Al_xGa_{1-x}As/GaAs heterostructures for temperatures from 2 to 295 K. Measurements of the steady-state spin…
Nuclear Magnetic Resonance in a Ferromagnet-Semiconductor Heterostructure
J. Strand, B. D. Schultz, A. F. Isakovic +3
We report the observation of nuclear magnetic resonance (NMR) in a ferromagnet-semiconductor heterostructure in the presence of a spin-polarized current. Spin-polarized electrons i…
Dynamical Nuclear Polarization by Electrical Spin Injection in Ferromagnet-Semiconductor Heterostructures
J. Strand, B. D. Schultz, A. F. Isakovic +2
Electrical spin injection from Fe into AlGaAs quantum well heterostructures is demonstrated in small (< 500 Oe) in-plane magnetic fields. The measurement is sensitive o…