Multiple modulation of magnetism in two-dimensional FeCl2/In2Se3 van der Waals heterostructure

The effective modulation of magnetism for two-dimensional (2D) materials not only has potential applications in nanoscale spintronic devices but also has urgent demands in modern industries. In this work, we report the discovery of ferroelectrically (FE) tunable orbital reconstruction in FeCl2/In2Se...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2023-07, Vol.123 (4)
Main Authors: Jin, Chao, Liu, Chang, Ren, Fengzhu, Wang, Bing, Sun, Wei, Jia, Minglei, Gu, Qinfen
Format: Article
Language:English
Subjects:
Anisotropy
Applied physics
Charge density
Electric control
Electrons
Ferroelectricity
Ferromagnetism
Heterostructures
Information storage
Interlayers
Iron chlorides
Magnetic moments
Magnetism
Magnetization
Modulation
Nanotechnology devices
Two dimensional materials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effective modulation of magnetism for two-dimensional (2D) materials not only has potential applications in nanoscale spintronic devices but also has urgent demands in modern industries. In this work, we report the discovery of ferroelectrically (FE) tunable orbital reconstruction in FeCl2/In2Se3 2D van der Waals (vdWs) heterostructures (HSs), which leads to a transition from ferromagnetic (FM) order to ferrimagnetic order (intra-layer magnetic coupling is AFM3 arrangement). The reversible FE polarization not only enables the easy magnetization axis to be tuned from the out-of-plane to in-plane direction but also reduces the net magnetization strength from 31.87 to −0.18 μB/f.u. Based on the charge density differences and the density of states analysis, the preference of FM and AFM3 arrangement can be reasonably explained by the Goodenough–Kanamori–Anderson rule. The ferroelectric switching enables nonvolatile electric control of magnetic order and anisotropy, offering significant potential for high-efficiency nanodevices and nonvolatile information storage. Moreover, modulation of magnetism (magnetic moment from −0.18 to 0.18 μB/f.u.) can also be achieved through interlayer sliding in the −P case, providing a way to control magnetism in 2D vdWs HSs.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0158281