Large exchange bias enhancement in (Pt(or Pd)/Co)/IrMn/Co trilayers with ultrathin IrMn thanks to interfacial Cu dusting
| Autor: | Sébastien Bandiera, Giovanni Vinai, Jérôme Moritz, Bernard Dieny, I. L. Prejbeanu |
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| Přispěvatelé: | SPINtronique et TEchnologie des Composants (SPINTEC), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CROCUS Technology, Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Condensed matter physics Bilayer Refractory metals chemistry.chemical_element 02 engineering and technology Atmospheric temperature range 021001 nanoscience & nanotechnology 01 natural sciences Exchange bias chemistry Transition metal [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 0103 physical sciences Thin film 010306 general physics 0210 nano-technology Cobalt Layer (electronics) |
| Zdroj: | Applied Physics Letters Applied Physics Letters, 2014, 104 (16), ⟨10.1063/1.4872265⟩ Applied Physics Letters, American Institute of Physics, 2014, 104 (16), ⟨10.1063/1.4872265⟩ |
| ISSN: | 0003-6951 |
| DOI: | 10.1063/1.4872265⟩ |
| Popis: | Équipe 107 : Physique des plasmas chauds; International audience; The magnitude of exchange bias (H-ex) at room temperature can be significantly enhanced in IrMn/Co and (Pt(or Pd)/Co)/IrMn/Co structures thanks to the insertion of an ultrathin Cu dusting layer at the IrMn/Co interface. The combination of trilayer structure and interfacial Cu dusting leads to a three-fold increase in H-ex as compared to the conventional IrMn/Co bilayer structure, with an increased blocking temperature (T-B) and a concave curvature of the temperature dependence H-ex(T), ideal for improved Thermally Assisted-Magnetic Random Access Memory storage layer. This exchange bias enhancement is ascribed to a reduction of the spin frustration at the IrMn/Co interface thanks to interfacial Cu addition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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