Ultralow Voltage Manipulation of Ferromagnetism
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 28 vom: 01. Juli, Seite e2001943 |
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Auteur principal: | |
Autres auteurs: | , , , , , , , , , , , , , , , , |
Format: | Article en ligne |
Langue: | English |
Publié: |
2020
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Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
Sujets: | Journal Article magnetoelectrics multiferroics nonvolatile memories spintronics ultralow-power spintronics |
Résumé: | © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Spintronic elements based on spin transfer torque have emerged with potential for on-chip memory, but they suffer from large energy dissipation due to the large current densities required. In contrast, an electric-field-driven magneto-electric storage element can operate with capacitive displacement charge and potentially reach 1-10 µJ cm-2 switching operation. Here, magneto-electric switching of a magnetoresistive element is shown, operating at or below 200 mV, with a pathway to get down to 100 mV. A combination of phase detuning is utilized via isovalent La substitution and thickness scaling in multiferroic BiFeO3 to scale the switching energy density to ≈10 µJ cm-2 . This work provides a template to achieve attojoule-class nonvolatile memories |
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Description: | Date Revised 30.09.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
ISSN: | 1521-4095 |
DOI: | 10.1002/adma.202001943 |