Emergence of Weyl fermions by ferrimagnetism in a noncentrosymmetric magnetic Weyl semimetal
(2023) In Nature Communications 14(1).- Abstract
Condensed matter physics has often provided a platform for investigating the interplay between particles and fields in cases that have not been observed in high-energy physics. Here, using angle-resolved photoemission spectroscopy, we provide an example of this by visualizing the electronic structure of a noncentrosymmetric magnetic Weyl semimetal candidate NdAlSi in both the paramagnetic and ferrimagnetic states. We observe surface Fermi arcs and bulk Weyl fermion dispersion as well as the emergence of new Weyl fermions in the ferrimagnetic state. Our results establish NdAlSi as a magnetic Weyl semimetal and provide an experimental observation of ferrimagnetic regulation of Weyl fermions in condensed matter.
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- author
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Communications
- volume
- 14
- issue
- 1
- article number
- 7185
- publisher
- Nature Publishing Group
- external identifiers
-
- scopus:85175978751
- pmid:37938548
- ISSN
- 2041-1723
- DOI
- 10.1038/s41467-023-42996-8
- language
- English
- LU publication?
- yes
- id
- 1c3c1101-95e7-468d-983e-fa90cebc3617
- date added to LUP
- 2023-11-24 11:36:39
- date last changed
- 2024-08-13 00:41:52
@article{1c3c1101-95e7-468d-983e-fa90cebc3617, abstract = {{<p>Condensed matter physics has often provided a platform for investigating the interplay between particles and fields in cases that have not been observed in high-energy physics. Here, using angle-resolved photoemission spectroscopy, we provide an example of this by visualizing the electronic structure of a noncentrosymmetric magnetic Weyl semimetal candidate NdAlSi in both the paramagnetic and ferrimagnetic states. We observe surface Fermi arcs and bulk Weyl fermion dispersion as well as the emergence of new Weyl fermions in the ferrimagnetic state. Our results establish NdAlSi as a magnetic Weyl semimetal and provide an experimental observation of ferrimagnetic regulation of Weyl fermions in condensed matter.</p>}}, author = {{Li, Cong and Zhang, Jianfeng and Wang, Yang and Liu, Hongxiong and Guo, Qinda and Rienks, Emile and Chen, Wanyu and Bertran, Francois and Yang, Huancheng and Phuyal, Dibya and Fedderwitz, Hanna and Thiagarajan, Balasubramanian and Dendzik, Maciej and Berntsen, Magnus H. and Shi, Youguo and Xiang, Tao and Tjernberg, Oscar}}, issn = {{2041-1723}}, language = {{eng}}, number = {{1}}, publisher = {{Nature Publishing Group}}, series = {{Nature Communications}}, title = {{Emergence of Weyl fermions by ferrimagnetism in a noncentrosymmetric magnetic Weyl semimetal}}, url = {{http://dx.doi.org/10.1038/s41467-023-42996-8}}, doi = {{10.1038/s41467-023-42996-8}}, volume = {{14}}, year = {{2023}}, }