Ren Hongtao, Xiang Gang
School of Materials Science and Engineering, Liaocheng University, Hunan Road No. 1, Liaocheng 252000, China.
College of Physics, Sichuan University, Wangjiang Road No. 29, Chengdu 610064, China.
Nanomaterials (Basel). 2022 Oct 2;12(19):3451. doi: 10.3390/nano12193451.
Since long-range magnetic ordering was observed in pristine CrGeTe and monolayer CrCl, two-dimensional (2D) magnetic materials have gradually become an emerging field of interest. However, it is challenging to induce and modulate magnetism in non-magnetic (NM) materials such as rhenium disulfide (ReS). Theoretical research shows that defects, doping, strain, particular phase, and domain engineering may facilitate the creation of magnetic ordering in the ReS system. These predictions have, to a large extent, stimulated experimental efforts in the field. Herein, we summarize the recent progress on ferromagnetism (FM) in ReS. We compare the proposed methods to introduce and modulate magnetism in ReS, some of which have made great experimental breakthroughs. Experimentally, only a few ReS materials exhibit room-temperature long-range ferromagnetic order. In addition, the superexchange interaction may cause weak ferromagnetic coupling between neighboring trimers. We also present a few potential research directions for the future, and we finally conclude that a deep and thorough understanding of the origin of FM with and without strain is very important for the development of basic research and practical applications.
自从在原始的CrGeTe和单层CrCl中观察到长程磁有序以来，二维（2D）磁性材料逐渐成为一个新兴的研究热点。然而，在诸如二硫化铼（ReS）等非磁性（NM）材料中诱导和调制磁性具有挑战性。理论研究表明，缺陷、掺杂、应变、特定相和畴工程可能有助于在ReS体系中产生磁有序。这些预测在很大程度上激发了该领域的实验研究。在此，我们总结了ReS中铁磁性（FM）的最新进展。我们比较了在ReS中引入和调制磁性的方法，其中一些方法已经取得了重大的实验突破。在实验上，只有少数ReS材料表现出室温长程铁磁序。此外，超交换相互作用可能导致相邻三聚体之间的弱铁磁耦合。我们还提出了一些未来潜在的研究方向，最后得出结论，深入透彻地理解有应变和无应变时FM的起源对于基础研究和实际应用的发展非常重要。
