Issue 6, 2020

Prediction of a two-dimensional high-TC f-electron ferromagnetic semiconductor

Abstract

Two-dimensional (2D) ferromagnetic semiconductors (FMSs) exhibit novel spin-dependent electronic and optical properties, opening up exciting opportunities for nanoscale spintronic devices. However, experimentally confirmed 2D FMSs based on transition metal ions are rather limited and their performances are not satisfactory, e.g. typically with low Curie temperatures and small magnetic signals. Different from most known 2D magnets based on d-electrons, here an exotic 2D FMS based on rare-earth ions with f-electrons, a GdI2 monolayer, is predicted to have a large magnetization (8 μB f.u.−1), whose ferromagnetism can survive near room temperature (241 K). In addition, with a small exfoliation energy from its layered van der Waals (vdW) bulk, this GdI2 monolayer holds excellent dynamical and thermal stabilities, making our prediction promising in experiments. Our prediction not only offers a compelling FMS for spintronics, but also provides an alternative route to acquire more high-performance 2D FMSs, going beyond pure d-electron compounds.

Graphical abstract: Prediction of a two-dimensional high-TC f-electron ferromagnetic semiconductor

Supplementary files

Article information

Article type
Communication
Submitted
04 ፌብሩ 2020
Accepted
31 ማርች 2020
First published
01 ኤፕሪ 2020

Mater. Horiz., 2020,7, 1623-1630

Author version available

Prediction of a two-dimensional high-TC f-electron ferromagnetic semiconductor

B. Wang, X. Zhang, Y. Zhang, S. Yuan, Y. Guo, S. Dong and J. Wang, Mater. Horiz., 2020, 7, 1623 DOI: 10.1039/D0MH00183J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements