Electric field control of RKKY coupling through solid-state ionics
Placing a suitable spacer layer between two magnetic layers can lead to an interaction between the magnetic layers known as Ruderman–Kittel–Kasuya–Yosida (RKKY) coupling. Controlling RKKY coupling, particularly the ability to switch between ferromagnetic and antiferromagnetic coupling, would enable...
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| Veröffentlicht in: | Applied physics letters 2023-06, Vol.122 (23) |
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| container_title | Applied physics letters |
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| creator | Ameziane, Maria Rosenkamp, Roy Flajšman, Lukáš van Dijken, Sebastiaan Mansell, Rhodri |
| description | Placing a suitable spacer layer between two magnetic layers can lead to an interaction between the magnetic layers known as Ruderman–Kittel–Kasuya–Yosida (RKKY) coupling. Controlling RKKY coupling, particularly the ability to switch between ferromagnetic and antiferromagnetic coupling, would enable novel magnetic data storage devices. By combining solid-state Li ion battery technology with an out-of-plane magnetized Co/Pt-based stack coupled through a Ru interlayer, we investigate the effects of the insertion of Li ions on the magnetic properties of the stack. The RKKY coupling and its voltage dependence are measured as a function of the Ru interlayer thickness, along with the effects of repeated voltage cycling. The Li ions both change the amplitude of the RKKY coupling and its phase, leading to the ability to switch the RKKY coupling between ferromagnetic and antiferromagnetic with applied voltages. |
| doi_str_mv | 10.1063/5.0145144 |
| format | Article |
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Controlling RKKY coupling, particularly the ability to switch between ferromagnetic and antiferromagnetic coupling, would enable novel magnetic data storage devices. By combining solid-state Li ion battery technology with an out-of-plane magnetized Co/Pt-based stack coupled through a Ru interlayer, we investigate the effects of the insertion of Li ions on the magnetic properties of the stack. The RKKY coupling and its voltage dependence are measured as a function of the Ru interlayer thickness, along with the effects of repeated voltage cycling. 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| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2023-06, Vol.122 (23) |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_5_0145144 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Antiferromagnetism Applied physics Coupling Data storage Electric fields Electric potential Ferromagnetism Interlayers Magnetic properties Ruthenium Solid state Voltage |
| title | Electric field control of RKKY coupling through solid-state ionics |
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