Vaz, DC and Lin, C-C and Plombon, JJ and Choi, WY and Groen, I and Arango, IC and Chuvilin, A and Hueso, LE and Nikonov, DE and Li, H and Debashis, P and Clendenning, SB and Gosavi, TA and Huang, Y-L and Prasad, B and Ramesh, R and Vecchiola, A and Bibes, M and Bouzehouane, K and Fusil, S and Garcia, V and Young, IA and Casanova, F (2024) Voltage-based magnetization switching and reading in magnetoelectric spin-orbit nanodevices. In: Nature Communications, 15 (1).
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Abstract
As CMOS technologies face challenges in dimensional and voltage scaling, the demand for novel logic devices has never been greater, with spin-based devices offering scaling potential, at the cost of significantly high switching energies. Alternatively, magnetoelectric materials are predicted to enable low-power magnetization control, a solution with limited device-level results. Here, we demonstrate voltage-based magnetization switching and reading in nanodevices at room temperature, enabled by exchange coupling between multiferroic BiFeO3 and ferromagnetic CoFe, for writing, and spin-to-charge current conversion between CoFe and Pt, for reading. We show that, upon the electrical switching of the BiFeO3, the magnetization of the CoFe can be reversed, giving rise to different voltage outputs. Through additional microscopy techniques, magnetization reversal is linked with the polarization state and antiferromagnetic cycloid propagation direction in the BiFeO3. This study constitutes the building block for magnetoelectric spin-orbit logic, opening a new avenue for low-power beyond-CMOS technologies. © The Author(s) 2024.
| Item Type: | Journal Article |
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| Publication: | Nature Communications |
| Publisher: | Nature Research |
| Additional Information: | The copyright for this article belongs to author. |
| Keywords: | electrical conductivity; magnetization; nanomaterial, Article; electric potential; electromagnetism; magnetic field; magnetometry; polarization; room temperature; scanning electron microscopy; transmission electron microscopy; article; controlled study; microscopy; nanodevice; ORBIT score |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 30 May 2024 06:28 |
| Last Modified: | 30 May 2024 06:28 |
| URI: | https://eprints.iisc.ac.in/id/eprint/84598 |
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