Journal
APL MATERIALS
Volume 9, Issue 4, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0045820
Keywords
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Funding
- National Natural Science Foundation of China [52031014, 51871130]
- Young Talents Project of Shenyang National Laboratory for Materials Science and Innovation Fund from the Institute of Metals Research
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Voltage control of magnetism has been found as an efficient way to improve energy efficiency in spintronic devices. Recent research has focused on voltage-induced changes in magnetism, particularly by the magneto-ionic effect, in ferroic oxide heterostructures and magnetic metal-based systems. Challenges and future aspects of magneto-ionics are also discussed for further studies and practical applications.
Voltage control of magnetism has been considered and proven to be an efficient actuation protocol to boost energy efficiency in a widespread range of spintronic devices. In particular, the study of voltage-induced changes in magnetism by the magneto-ionic effect has rapidly accelerated during the past few years due to the versatile advantages of effective control, non-volatile nature, low-power cost, etc. In this perspective, we briefly outline the recent research progress on the voltage-controlled magneto-ionic effect by using two representative dielectric gating materials [ionic liquids (ILs) and ionic conductors] in different functional solid-state heterostructures and devices, mainly including both the ferroic-order [ferromagnetic, ferroelectric (FE), and multiferroic] oxides and magnetic metal-based heterostructure systems. Within the framework of ferroic oxide heterostructures, we have also extended the IL control to FE materials, clarifying that FE properties can also be tailored by electrostatic and electrochemical methods. Finally, we discuss the challenges and future aspects of magneto-ionics, which would inspire more in-depth studies and promote the practical applications.
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