论文标题
2D巡回式ISIT FERROMAGNET FE3GEGE2中的Kondo孔
Kondo holes in the 2D itinerant Ising ferromagnet Fe3GeTe2
论文作者
论文摘要
由于局部磁矩和巡回电子之间的相互作用，重型费米（HF）状态在相关的量子材料中出现，但由于D电子的较高暂停，很少出现在3D电子系统中。在这里，在Fe3gete2的局部FE空缺的昆多孔中观察到了近托筛查的异常增强，该空缺是最近发现的3D-HF系统，具有近托晶格和二维巡回巡回的铁磁性。建立了一个巡回的近调模型，以重现实验结果，该结果可洞悉Ising铁磁学和围to筛查之间的竞争。这项工作解释了D-Electron HF状态的微观起源，并激发了对Ising Ferromagnets中昆多孔的丰富量子多体现象的研究。
Heavy fermion (HF) states emerge in correlated quantum materials due to the interplay between localized magnetic moments and itinerant electrons, but rarely appear in 3d-electron systems due to high itinerancy of d-electrons. Here, an anomalous enhancement of Kondo screening is observed at the Kondo hole of local Fe vacancies in Fe3GeTe2 which is a recently discovered 3d-HF system featuring of Kondo lattice and two-dimensional itinerant ferromagnetism. An itinerant Kondo-Ising model is established to reproduce the experimental results which provides insight of the competition between Ising ferromagnetism and Kondo screening. This work explains the microscopic origin of the d-electron HF states and inspires study of the enriched quantum many-body phenomena with Kondo holes in Ising ferromagnets.
