Correlation driven near-flat band Stoner excitations in a Kagome magnet
oleh: Abhishek Nag, Yiran Peng, Jiemin Li, S. Agrestini, H. C. Robarts, Mirian García-Fernández, A. C. Walters, Qi Wang, Qiangwei Yin, Hechang Lei, Zhiping Yin, Ke-Jin Zhou
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2022-11-01 |
Deskripsi
In flat band materials, the ’flat’ dispersion of the electronic states mean that interactions between electrons can be strong, potentially leading to a variety of interesting magnetic and transport properties. Here, Nag et al study the Kagomé semimetal Co3Sn2S2, and show a nearly flat Stoner excitation dispersion, a clear indication of spin-polarized and flat electronic bands.