Journal
PHYSICAL REVIEW LETTERS
Volume 124, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.067602
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Funding
- National Natural Science Foundation of China [11774127, 11822404, 11722433, 11774173, 51790492, 11904142]
- U.S. DOE, Office of Basic Energy Sciences, Division of Material Sciences and Engineering [DE-FG02-96ER45579]
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Controlling magnetism of two-dimensional multiferroics by an external electric field provides special opportunities for both fundamental research and future development of low-cost electronic nanodevices. Here, we report a general scheme for realizing a magnetic phase transition in 2D type-I multiferroic systems through the reversal of ferroelectric polarization. Based on first-principles calculations, we demonstrate that a single-phase 2D multiferroic, namely, ReWCl6 monolayer, exhibits two different low-symmetric (C-2) phases with opposite in-plane electric polarization and different magnetic order. As a result, an antiferromagnetic-to-ferromagnetic phase transition can be realized by reversing the in-plane electric polarization through the application of an external electric field. These findings not only enrich the 2D multiferroic family, but also uncover a unique and general mechanism to control magnetism by electric field, thus stimulating experimental interest.
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