论文标题
量子磁铁PB2V3O9中的自旋塞贝克效应
Spin Seebeck effect in quantum magnet Pb2V3O9
论文作者
论文摘要
自旋Seebeck效应（SSE）是热量产生的自旋电流，已经在各种磁性材料中进行了广泛的研究，包括铁磁铁，抗铁磁铁，paramagagnets和量子自旋液体。在本文中，我们报告了SSE在单晶PB2V3O9中的研究，这是一种带有准二维自旋1/2链的旋转量子磁铁候选者。研究了SSE的详细温度和磁场依赖性，并且依赖温度的临界磁场显示与量子磁铁PB2V3O9的Bose-Einstein冷凝阶段有很强的相关性。这项工作表明，使用自旋电流作为探针研究量子磁体中的自旋相关性和相变特性的潜力。
Spin Seebeck effect (SSE), the generation of spin current from heat, has been extensively studied in a large variety of magnetic materials, including ferromagnets, antiferromagnets, paramagnets, and quantum spin liquids. In this paper, we report the study of the SSE in the single crystalline Pb2V3O9, a spin-gapped quantum magnet candidate with quasi-one-dimensional spin-1/2 chain. Detailed temperature and magnetic field dependences of the SSE are investigated, and the temperature-dependent critical magnetic fields show a strong correlation to the Bose-Einstein condensation phase of the quantum magnet Pb2V3O9. This work shows the potential of using spin current as a probe to study the spin correlation and phase transition properties in quantum magnets.
