Kondo holes in the 2D itinerant Ising ferromagnet Fe3GeTe2
| Autor: | Zhao, Mengting, Chen, Binbin, Xi, Yilian, Zhao, Yanyan, Zhang, Hongrun, Feng, Haifeng, Zhuang, Jincheng, Xu, Xun, Hao, Weichang, Li, Wei, Zhou, Si, Dou, Shi Xue, Du, Yi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1021/acs.nanolett.1c01661 |
| Popis: | 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. Comment: 17 Pages, 4 Figures |
| Databáze: | arXiv |
| Externí odkaz: |
|