Discerning the Vibrational Nature of ReS2 Raman Modes Using Solid-Angle-Resolved Raman Spectroscopy,ACS Photonics

当前位置： X-MOL 学术 › ACS Photonics › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Discerning the Vibrational Nature of ReS2 Raman Modes Using Solid-Angle-Resolved Raman Spectroscopy
ACS Photonics ( IF 6.5 ) Pub Date : 2022-10-17 , DOI: 10.1021/acsphotonics.2c00865
Ting Wen ₁ , Jing Li ₁ , Maodi Zhang ₁ , Chenyin Jiao ₁ , Shenghai Pei ₁ , Zenghui Wang ₁ , Juan Xia ₁

Affiliation

ReS₂ exhibits reduced crystal symmetry, which leads to pronounced anisotropy and intricate Raman vibrations. However, to date, the vibrational nature of ReS₂ Raman modes has remained elusive, with unresolved theoretical disputes. Here, we study Raman vibrations in ReS₂ crystals using solid-angle-resolved Raman spectroscopy, which allows us to leverage the full 3 × 3 Raman tensor to resolve the A_g-like and E_g-like nature of all the 18 Raman modes. Combined with pressure-dependent measurements, we observe distinct behavior in the A_g-like and E_g-like modes. Our findings show unambiguous experimental evidence for discerning the ReS₂ Raman modes and can offer important insights into the vibrational nature of Raman modes in layered anisotropic crystals.

中文翻译：

使用立体角分辨拉曼光谱法辨别 ReS2 拉曼模式的振动性质

ReS ₂表现出降低的晶体对称性，这导致明显的各向异性和复杂的拉曼振动。然而，迄今为止，ReS ₂拉曼模式的振动性质仍然难以捉摸，理论争议也未解决。在这里，我们使用立体角分辨拉曼光谱研究 ReS _{2晶体中的拉曼振动，这使我们能够利用完整的 3 × 3 拉曼张量来解析所有 18 种拉曼模式的类 A}_g和类 E _g性质. 结合压力相关测量，我们观察到 A _g样和 E _g样模式中的不同行为。我们的研究结果显示了辨别 ReS _{2的明确实验证据}拉曼模式可以提供对层状各向异性晶体中拉曼模式振动性质的重要见解。

更新日期：2022-10-17

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11