Characterization of Nanomagnet Fringing Fields in Hybrid Semiconductor/Ferromagnetic Devices
We describe the fabrication of a hybrid nanomagneto-electronic device, consisting of a GaAs/AlGaAs quantum wire that is bridged by a ferromagnetic gate, and study the influence of the nanomagnet fringing fields on the quantum-wire magneto-resistance. The nonplanar gate shows clear single-domain stru...
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| Veröffentlicht in: | IEEE transactions on magnetics 2008-12, Vol.44 (12), p.4706-4710 |
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| container_issue | 12 |
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| container_title | IEEE transactions on magnetics |
| container_volume | 44 |
| creator | Bae, J.-U. Lin, T.-Y. Yoon, Y. Kim, S.J. Bird, J.P. Imre, A. Porod, W. Reno, J.L. |
| description | We describe the fabrication of a hybrid nanomagneto-electronic device, consisting of a GaAs/AlGaAs quantum wire that is bridged by a ferromagnetic gate, and study the influence of the nanomagnet fringing fields on the quantum-wire magneto-resistance. The nonplanar gate shows clear single-domain structure in magnetic-force microscopy, and a simple magnetization behavior in an external magnetic field. This behavior is reflected as a hysteretic variation of the quantum-wire magneto-resistance, whose magnitude is found to be consistent with theoretical predictions for ballistic electron transport through a spatially varying magnetic field. |
| doi_str_mv | 10.1109/TMAG.2008.2002924 |
| format | Article |
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The nonplanar gate shows clear single-domain structure in magnetic-force microscopy, and a simple magnetization behavior in an external magnetic field. 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The nonplanar gate shows clear single-domain structure in magnetic-force microscopy, and a simple magnetization behavior in an external magnetic field. This behavior is reflected as a hysteretic variation of the quantum-wire magneto-resistance, whose magnitude is found to be consistent with theoretical predictions for ballistic electron transport through a spatially varying magnetic field.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMAG.2008.2002924</doi><tpages>5</tpages></addata></record> |
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| subjects | Cross-disciplinary physics: materials science rheology Exact sciences and technology Fabrication Ferromagnet Ferromagnetism Gallium arsenide Gates Hysteresis Magnetic devices Magnetic fields Magnetic force microscopy Magnetic hysteresis Magnetic semiconductors Magnetism Magnetization magneto-electronics magneto-resistance Materials science Nanocomposites Nanomaterials Nanoscale devices Nanostructure Other topics in materials science Physics Semiconductors Wire |
| title | Characterization of Nanomagnet Fringing Fields in Hybrid Semiconductor/Ferromagnetic Devices |
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