Magnetoelectric Memory Based on Ferromagnetic/Ferroelectric Multiferroic Heterostructure.

Jiawei Wang, Aitian Chen, Peisen Li, Sen Zhang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Electric-field control of magnetism is significant for the next generation of large-capacity and low-power data storage technology. In this regard, the renaissance of a multiferroic compound provides an elegant platform owing to the coexistence and coupling of ferroelectric (FE) and magnetic orders. However, the scarcity of single-phase multiferroics at room temperature spurs zealous research in pursuit of composite systems combining a ferromagnet with FE or piezoelectric materials. So far, electric-field control of magnetism has been achieved in the exchange-mediated, charge-mediated, and strain-mediated ferromagnetic (FM)/FE multiferroic heterostructures. Concerning the giant, nonvolatile, and reversible electric-field control of magnetism at room temperature, we first review the theoretical and representative experiments on the electric-field control of magnetism via strain coupling in the FM/FE multiferroic heterostructures, especially the CoFeB/PMN–PT [where PMN–PT denotes the (PbMn1/3Nb2/3O3)1−x-(PbTiO3)x] heterostructure. Then, the application in the prototype spintronic devices, i.e., spin valves and magnetic tunnel junctions, is introduced. The nonvolatile and reversible electric-field control of tunneling magnetoresistance without assistant magnetic field in the magnetic tunnel junction (MTJ)/FE architecture shows great promise for the future of data storage technology. We close by providing the main challenges of this and the different perspectives for straintronics and spintronics.
Original languageEnglish (US)
Pages (from-to)4623
JournalMaterials (Basel, Switzerland)
Volume14
Issue number16
DOIs
StatePublished - Aug 27 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-08-30
Acknowledgements: This research was funded by the National Natural Science Foundation of China (NSFC Grant Nos. 12074429 and 11504327), and Scientific Research Foundation of Zhejiang University of Technology.

ASJC Scopus subject areas

  • General Materials Science

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