发表机构
University of Otago; Dodd-Walls Centre for Photonic and Quantum Technologies（奥塔哥大学; 多德-沃尔斯光子和量子技术中心）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究Nd:GdVO$_4$在低温下的光学性质，发现窄光学跃迁，并通过交换与塞曼相互作用揭示负g因子，为其作为混合量子系统材料提供光谱学基础。
AI 中文摘要
掺钕钒酸钆（Nd:GdVO$_4$）是一种在室温下常用的激光材料。由于宿主中无序钆自旋引起的线展宽效应，它在量子技术领域受到的关注有限。本文研究了在2.5 K Néel温度以下的光学性质，揭示了窄光学跃迁。我们证明，磁性宿主中的稀土离子为我们观察磁g因子符号提供了新途径。交换相互作用与塞曼相互作用之间的相互作用意味着我们看到了负g因子的清晰证据。这些结果为Nd:GdVO$_4$提供了详细的光谱学基础，并拓展了对其作为混合量子系统材料候选资格的理解。
英文摘要
Neodymium-doped gadolinium vanadate (Nd:GdVO$_4$) is a popular laser material at room temperature. It has received limited attention for quantum technologies because of the linebroadening effects of disordered gadolinium spins in the host. Here we investigate the optical properties at temperatures below the 2.5 K Néel temperature, revealing narrow optical transitions. We demonstrate that rare earth ions in magnetic hosts give us a new way of observing the signs of magnetic g-factors. The interplay between the exchange and Zeeman interactions means that we see clear evidence of negative g-factors. These results provide a detailed spectroscopic foundation for Nd:GdVO$_4$ and expand the understanding of its candidacy as a material for hybrid quantum systems.
