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Manipulation of Magnetic Skyrmion in a 2D van der Waals Heterostructure via Both Electric and Magnetic Fields

Journal Article · · Advanced Functional Materials
 [1];  [2];  [3];  [2];  [2];  [2];  [4]
  1. Henan University, Kaifeng (China); OSTI
  2. Henan University, Kaifeng (China)
  3. University of New Hampshire, Durham, NH (United States)
  4. University of Wollongong, NSW (Australia)

As a promising candidate for the much-desired low power consumption spintronic devices, 2D magnetic van der Waals material also provides a versatile platform for the design and control of topological spin textures. In this work on WTe2/CrCl3 bilayer van der Waals heterostructures, a complete Néel-type skyrmion–bimeron–ferromagnet phase transition is demonstrated, accompanied by the evolution of the topological number. This cyclic transition, mediated by a perpendicular magnetic field, is largely driven by the competition between the out-of-plane magnetocrystalline anisotropy and magnetic dipole–dipole interaction. In the presence of a driving current, the Néel-type skyrmion gains a higher velocity yet larger skyrmion Hall angle, in comparison to the bimeron. By incorporating a ferroelectric CuInP2S6 monolayer as a substrate, writing and erasing of skyrmions may be regulated using a ferroelectric polarization. Here this work sheds light on a novel approach to the design and control of magnetic skyrmions on 2D van der Waals materials.

Research Organization:
University of New Hampshire, Durham, NH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China; Henan University; Australia Research Council
Grant/Contract Number:
SC0020221
OSTI ID:
1976166
Alternate ID(s):
OSTI ID: 1813500
Journal Information:
Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 47 Vol. 31; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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