Magnetic Properties and Kondo Effect in Ce 3 TiBi 5 under High Pressure

作者：Li‐Chen Fu, W. J. Cheng, Liyun Shi, Baosen Min, Peng Yi, J. F. Zhang, Junlei Song, Zhen Deng, Jiguang Zhao, Yi Liu, Jinlong Zhu, J. F. Zhang, Xuan Wang, Changqing Jin · 发表于：Chinese Physics Letters · 年份：2025 · DOI：10.1088/0256-307x/43/1/010705 · 被引用次数：2 · 研究领域：Rare-earth and actinide compounds、Superconductivity in MgB2 and Alloys、Iron-based superconductors research

Abstract The magnetic properties and Kondo effect in Ce 3 TiBi 5 with a quasi-one-dimensional structure were investigated using in situ high-pressure resistivity measurements up to 48 GPa. At ambient pressure, Ce 3 TiBi 5 undergoes an antiferromagnetic (AFM) transition at T N ∼ 5 K. Under high pressures within 8.9 GPa, we find that Kondo scattering contributes differently to the high-temperature resistance, R ( T ), depending on the applied current direction, demonstrating a significantly anisotropic Kondo effect. The complete P – T phase diagram has been constructed, in which the pressure dependence of T N exhibits a dome-like shape. The AFM order remains robust under pressure, even when the coherence temperature T * far exceeds 300 K. We attribute the observed anisotropic Kondo effect and the robust AFM to the underlying anisotropy in electronic hybridization under high pressure.