Magnetic moment compensation in exchange-biased trilayers with antiparallel spin alignment
| Autor: | Yang-Hsiung Fan, Hubert Brückl |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Magnetic moment Condensed matter physics Demagnetizing field Spin valve Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter::Materials Science Ferromagnetism Stack (abstract data type) Transition metal Condensed Matter::Superconductivity Electrode Antiparallel (electronics) |
| Zdroj: | Applied Physics Letters. 83:3138-3140 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.1619565 |
| Popis: | Trilayers consisting of ferromagnetic rare earth and transition metals show an antiparallel exchange coupling of the individual layers. Thus, they can be exploited as hardmagnetic electrodes in spin valve stacks and magnetic tunnel junctions for sensors or memories. Magnetic tunnel junctions consisting of IrMn exchange-biased NiFe/Gd/NiFe trilayers show a compensation of the total magnetic moment at an appropriate choice of the individual layer thicknesses and temperature. This stack setup allows a sixfold enhancement of the exchange-bias field and a strong reduction of the Neel and edge stray field coupling in patterned elements. Therefore, such trilayers are proposed as an alternative for artificial ferrimagnets in the relevant devices. |
| Databáze: | OpenAIRE |
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