Browsing by Author "VAN, DIJKEN SEBASTIAN"
Now showing items 1-5 of 5
-
Annealing of CoFeB/MgO based single and double barrier magnetic tunnel junctions: Tunnel magnetoresistance, bias dependence, and output voltage
FENG, GEN; FENG, JIA-FENG; VAN, DIJKEN SEBASTIAN; COEY, JOHN MICHAEL DAVID (American Institute of Physics, 2009)Co40Fe40B20/MgO single and double barrier magnetic tunnel junctions (MTJs) were grown using target-facing-target sputtering for MgO barriers and conventional dc magnetron sputtering for Co40Fe40B20 ferromagnetic electrodes. ... -
Influence of the annealing field strength on exchange bias and magnetoresistance of spin valves with IrMn
VAN, DIJKEN SEBASTIAN; COEY, JOHN MICHAEL DAVID (American Institute of Physics, 2005)We report on field annealing effects in spin valves with an IrMn pinning layer and spin valves with a synthetic antiferromagnet. The exchange bias field and magnetoresistance of spin valves with an IrMn/CoFe bilayer at ... -
MgO-based double barrier magnetic tunnel junctions with thin free layers
FENG, GEN; VAN, DIJKEN SEBASTIAN; COEY, JOHN MICHAEL DAVID (American Institute of Physics, 2009)The free layer thickness (tfree) in double barrier magnetic tunnel junctions (DMTJs) based on crystalline MgO barriers and CoFeB ferromagnetic layers has been varied from 0.5 to 3.0 nm in order to investigate its effect ... -
Negative magnetoresistance in Fe3O4/Au/Fe spin valves
VAN, DIJKEN SEBASTIAN; COEY, JOHN MICHAEL DAVID (American Physical Society, 2004)The structural, electrical, and magnetic properties of Fe3O4 /Au/Fe spin valves on MgOs001d are presented. In contrast to more conventional spin valve structures, the current-in-plane resistance of the Fe3O4 /Au/Fe ... -
Transport characteristics of magnetite thin films grown onto GaAs substrates
VAN, DIJKEN SEBASTIAN; COEY, JOHN MICHAEL DAVID (IEEE, 2004)Magnetite thin films with a preferred (111) orientation have been deposited by reactive dc magnetron sputtering from a pure Fe target onto (100) GaAs substrates at 400??C. The films show a clear Verwey transition in both ...