Kramers nodal lines and Weyl fermions in SmAlSi

dc.citation.articleNumber134
dc.citation.journalTitleCommunications Physics
dc.citation.volumeNumber6
dc.contributor.authorZhang, Yichen
dc.contributor.authorGao, Yuxiang
dc.contributor.authorGao, Xue-Jian
dc.contributor.authorLei, Shiming
dc.contributor.authorNi, Zhuoliang
dc.contributor.authorOh, Ji Seop
dc.contributor.authorHuang, Jianwei
dc.contributor.authorYue, Ziqin
dc.contributor.authorZonno, Marta
dc.contributor.authorGorovikov, Sergey
dc.contributor.authorHashimoto, Makoto
dc.contributor.authorLu, Donghui
dc.contributor.authorDenlinger, Jonathan D.
dc.contributor.authorBirgeneau, Robert J.
dc.contributor.authorKono, Junichiro
dc.contributor.authorWu, Liang
dc.contributor.authorLaw, Kam Tuen
dc.contributor.authorMorosan, Emilia
dc.contributor.authorYi, Ming
dc.date.accessioned2023-07-21T16:14:08Z
dc.date.available2023-07-21T16:14:08Z
dc.date.issued2023
dc.description.abstractKramers nodal lines (KNLs) have recently been proposed theoretically as a special type of Weyl line degeneracy connecting time-reversal invariant momenta. KNLs are robust to spin orbit coupling and are inherent to all non-centrosymmetric achiral crystal structures, leading to unusual spin, magneto-electric, and optical properties. However, their existence in in real quantum materials has not been experimentally established. Here we gather the experimental evidence pointing at the presence of KNLs in SmAlSi, a non-centrosymmetric metal that develops incommensurate spin density wave order at low temperature. Using angle-resolved photoemission spectroscopy, density functional theory calculations, and magneto-transport methods, we provide evidence suggesting the presence of KNLs, together with observing Weyl fermions under the broken inversion symmetry in the paramagnetic phase of SmAlSi. We discuss the nesting possibilities regarding the emergent magnetic orders in SmAlSi. Our results provide a solid basis of experimental observations for exploring correlated topology in SmAlSi
dc.identifier.citationZhang, Yichen, Gao, Yuxiang, Gao, Xue-Jian, et al.. "Kramers nodal lines and Weyl fermions in SmAlSi." <i>Communications Physics,</i> 6, (2023) Springer Nature: https://doi.org/10.1038/s42005-023-01257-2.
dc.identifier.digitals42005-023-01257-2
dc.identifier.doihttps://doi.org/10.1038/s42005-023-01257-2
dc.identifier.urihttps://hdl.handle.net/1911/115020
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleKramers nodal lines and Weyl fermions in SmAlSi
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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