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Emergence of Weyl fermions by ferrimagnetism in a noncentrosymmetric magnetic Weyl semimetal

Li, Cong ; Zhang, Jianfeng ; Wang, Yang ; Liu, Hongxiong ; Guo, Qinda ; Rienks, Emile ; Chen, Wanyu ; Bertran, Francois ; Yang, Huancheng and Phuyal, Dibya , et al. (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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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
14
issue
1
article number
7185
publisher
Nature Publishing Group
external identifiers
  • pmid:37938548
  • scopus:85175978751
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
2024-04-21 14:30:34
@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}},
}