Hanle effect missing in a prototypical organic spintronic device
arXiv:1211.3986 · doi:10.1063/1.4794408
Abstract
We investigate spin precession (Hanle effect) in the prototypical organic spintronic giant magnetoresistance (GMR) device La0.7Sr0.3MnO3(LSMO)/tris(8-hydroxyquinoline)(Alq3)/AlOx/Co. The Hanle effect is not observed in measurements taken by sweeping a magnetic field at different angles from the plane of the device. As possible explanations we discuss the tilting out of plane of the magnetization of the electrodes, exceptionally high mobility or hot spots. Our results call for a greater understanding of spin injection and transport in such devices.
References in corpus (7)
- Electrical Detection of Spin Transport in Lateral Ferromagnet-Semiconductor Devices
- Electronic measurement and control of spin transport in Silicon
- Coherent spin transport through a 350-micron-thick Silicon wafer
- Energy level alignment at Alq3/La0.7Sr0.3MnO3 interface for organic spintronic devices
- Conditions for the growth of smooth La0.7Sr0.3MnO3 thin films by pulsed electron ablation
- Oblique Hanle Effect in Semiconductor Spin Transport Devices
- Interface effects on an ultrathin Co film in multilayers based on the organic semiconductor Alq3
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- Hyperfine-induced spin relaxation of a diffusively moving carrier in low dimensions: implications for spin transport in organic semiconductors
- Nanosized Vertical Organic Spin-Valves
- Spin transport with traps: dramatic narrowing of the Hanle curve
- Giant fluctuations of local magnetoresistance of organic spin valves and non-hermitian 1D Anderson model
- Magnetoresistance in organic spintronic devices: the role of nonlinear effects
- Quantum dynamics of nuclear spins and spin relaxation in organic semiconductors
- Spin excitations in systems with hopping electron transport and strong position disorder in a large magnetic field
- Oxygen doping and polaron magnetic coupling in Alq films