Broken Kramers' degeneracy in altermagnetic MnTe
Fuente:
arXiv
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911760672358400 |
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| author | Lee, Suyoung Lee, Sangjae Jung, Saegyeol Jung, Jiwon Kim, Donghan Lee, Yeonjae Seok, Byeongjun Kim, Jaeyoung Park, Byeong Gyu Šmejkal, Libor Kang, Chang-Jong Kim, Changyoung |
| author_facet | Lee, Suyoung Lee, Sangjae Jung, Saegyeol Jung, Jiwon Kim, Donghan Lee, Yeonjae Seok, Byeongjun Kim, Jaeyoung Park, Byeong Gyu Šmejkal, Libor Kang, Chang-Jong Kim, Changyoung |
| contents | Altermagnetism is a newly identified fundamental class of magnetism with vanishing net magnetization and time-reversal symmetry broken electronic structure. Probing the unusual electronic structure with nonrelativistic spin splitting would be a direct experimental verification of altermagnetic phase. By combining high-quality film growth and $in~situ$ angle-resolved photoemission spectroscopy, we report the electronic structure of an altermagnetic candidate, $α$-MnTe. Temperature dependent study reveals the lifting of Kramers{\textquoteright} degeneracy accompanied by a magnetic phase transition at $T_N=267\text{ K}$ with spin splitting of up to $370\text{ meV}$, providing direct spectroscopic evidence for altermagnetism in MnTe. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_11180 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Broken Kramers' degeneracy in altermagnetic MnTe Lee, Suyoung Lee, Sangjae Jung, Saegyeol Jung, Jiwon Kim, Donghan Lee, Yeonjae Seok, Byeongjun Kim, Jaeyoung Park, Byeong Gyu Šmejkal, Libor Kang, Chang-Jong Kim, Changyoung Materials Science Strongly Correlated Electrons Altermagnetism is a newly identified fundamental class of magnetism with vanishing net magnetization and time-reversal symmetry broken electronic structure. Probing the unusual electronic structure with nonrelativistic spin splitting would be a direct experimental verification of altermagnetic phase. By combining high-quality film growth and $in~situ$ angle-resolved photoemission spectroscopy, we report the electronic structure of an altermagnetic candidate, $α$-MnTe. Temperature dependent study reveals the lifting of Kramers{\textquoteright} degeneracy accompanied by a magnetic phase transition at $T_N=267\text{ K}$ with spin splitting of up to $370\text{ meV}$, providing direct spectroscopic evidence for altermagnetism in MnTe. |
| title | Broken Kramers' degeneracy in altermagnetic MnTe |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2308.11180 |