Browsing Τμήμα Φυσικής / Department of Physics by Subject "Gallium arsenide"
Now showing items 1-5 of 5
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Article
Efficient spin detection across the hybrid Co/GaAs schottky interface
(2007)The electron spin detection efficiency was studied across Co/GaAs structures using photoexcitation techniques. Two sets of samples were prepared where the substrate surface was pretreated by annealing prior to growth for ...
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Article
Electric control of the spin Hall effect by intervalley transitions
(2014)Controlling spin-related material properties by electronic means is a key step towards future spintronic technologies. The spin Hall effect (SHE) has become increasingly important for generating, detecting and using spin ...
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Article
Electrical determination of the spin relaxation time of photoexcited electrons in GaAs
(2010)Spin-dependent transport for photoexcited electrons in an epitaxial Fe/GaAs interface was characterized from 5 to 300 K. The presence of spin-dependent transport was confirmed at all the measured temperatures and the spin ...
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Conference Object
Electrical spin injection and band offsets in an n-type ferromagnetic semiconductor heterostructure: n-CdCr2Se4/AlGaAs/GaAs
(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, ...
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Article
Large ultrafast optical nonlinearities in As-rich GaAs
(1994)The measurement of large Ultrafast bandgap-resonant optical nonlinearities in As-rich samples of GaAs that have been grown at low temperatures is reported. Light-induced refractive index changes of magnitude greater than ...