发表机构
National Center for Nanoscience and Technology; University of Chinese Academy of Sciences; University of Warsaw; CNRS–UGA–UPS–INSA–EMFL; University of Sapienza（中国科学院国家纳米科学中心; 中国科学院大学; 华沙大学; 法国国家科学研究中心-格勒诺布尔阿尔卑斯大学-图卢兹第三大学-INSA图卢兹-东洛林大学; 罗马第一大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文综述了二维磁性材料CrSBr从块体到单层的层依赖声子、激子及磁光性质，涵盖晶体结构、自旋-声子耦合与激子景观，并展望其在自旋电子学等领域的应用前景。
AI 中文摘要
二维层状磁性材料为探索低维磁性及其中耦合的多体相互作用提供了一个多功能平台。铬硫溴化物（CrSBr）因其固有的空气稳定性、半导体性质、强面内各向异性以及A型反铁磁有序，成为先进自旋电子学和光电子学应用的有前景候选材料。本综述总结了从块体晶体到单层极限下，对CrSBr层依赖的振动和激子性质及其磁光响应的最新研究进展。我们考察了其晶体结构、磁各向异性和层间自旋重取向，随后深入探讨了振动动力学和自旋-声子耦合。特别强调了激子景观，包括对磁场敏感的光致发光、局域激子态以及带隙中Frenkel和Wannier-Mott激子的共存。最后，我们讨论了在自旋电子学、磁光学和量子光子技术中利用CrSBr独特层依赖性质的挑战与前景。
英文摘要
Two-dimensional layered magnetic materials offer a versatile platform for exploring low-dimensional magnetism and coupled many-body interactions in these materials. Chromium sulfur bromide (CrSBr) is a promising candidate for advanced spintronic and optoelectronic applications because of its intrinsic air stability, semiconducting nature, strong in-plane anisotropy, and A-type antiferromagnetic ordering. This review summarizes recent advances in the understanding of the layer-dependent vibrational and excitonic properties of CrSBr, as well as its magneto-optical response, from bulk crystals to the monolayer limit. We examined its crystal structure, magnetic anisotropy, and interlayer spin reorientation, followed by insights into vibrational dynamics and spin-phonon coupling. Particular emphasis is placed on the excitonic landscape, including magnetic-field-sensitive photoluminescence, localized excitonic states, and the coexistence of Frenkel- and Wannier-Mott excitons in the bandgap. Finally, we discuss the challenges and prospects of harnessing the unique layer-dependent properties of CrSBr in spintronic, magneto-optical, and quantum photonic technologies.
Comments23 pages, 5 figures
