Issue 10, 2023

Magnetic order and magnetic anisotropy in two-dimensional ilmenenes

Abstract

Iron ilmenene is a new two-dimensional material that has recently been exfoliated from the naturally occurring iron titanate found in ilmenite ore, a material that is abundant on the earth's surface. In this work, we theoretically investigate the structural, electronic and magnetic properties of 2D transition-metal-based ilmenene-like titanates. The study of magnetic order reveals that these ilmenenes usually present intrinsic antiferromagnetic coupling between the 3d magnetic metals decorating both sides of the Ti–O layer. Furthermore, the ilmenenes based on late 3d brass metals, such as CuTiO3 and ZnTiO3, become ferromagnetic and spin compensated, respectively. Our calculations which include spin–orbit coupling reveal that the magnetic ilmenenes have large magnetocrystalline anisotropy energies when the 3d shell departs from being either filled or half-filled, with their spin orientation being out-of-plane for elements below half-filling of 3d states and in-plane above. These interesting magnetic properties of ilmenenes make them useful for future spintronic applications because they could be synthesized as already realized in the iron case.

Graphical abstract: Magnetic order and magnetic anisotropy in two-dimensional ilmenenes

Supplementary files

Article information

Article type
Paper
Submitted
02 mar. 2023
Accepted
10 apr. 2023
First published
20 apr. 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2023,5, 2813-2819

Magnetic order and magnetic anisotropy in two-dimensional ilmenenes

R. H. Aguilera-del-Toro, M. Arruabarrena, A. Leonardo and A. Ayuela, Nanoscale Adv., 2023, 5, 2813 DOI: 10.1039/D3NA00134B

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