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Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal
Colossal negative magnetoresistance is a well-known phenomenon, notably observed in hole-doped ferromagnetic manganites. It remains a major research topic due to its potential in technological applications. In contrast, topological semimetals show large but positive magnetoresistance, originated fro...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10575584/ https://www.ncbi.nlm.nih.gov/pubmed/37831777 http://dx.doi.org/10.1126/sciadv.adh0145 |
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author | Singha, Ratnadwip Dalgaard, Kirstine J. Marchenko, Dmitry Krivenkov, Maxim Rienks, Emile D. L. Jovanovic, Milena Teicher, Samuel M. L. Hu, Jiayi Salters, Tyger H. Lin, Jingjing Varykhalov, Andrei Ong, N. Phuan Schoop, Leslie M. |
author_facet | Singha, Ratnadwip Dalgaard, Kirstine J. Marchenko, Dmitry Krivenkov, Maxim Rienks, Emile D. L. Jovanovic, Milena Teicher, Samuel M. L. Hu, Jiayi Salters, Tyger H. Lin, Jingjing Varykhalov, Andrei Ong, N. Phuan Schoop, Leslie M. |
author_sort | Singha, Ratnadwip |
collection | PubMed |
description | Colossal negative magnetoresistance is a well-known phenomenon, notably observed in hole-doped ferromagnetic manganites. It remains a major research topic due to its potential in technological applications. In contrast, topological semimetals show large but positive magnetoresistance, originated from the high-mobility charge carriers. Here, we show that in the highly electron-doped region, the Dirac semimetal CeSbTe demonstrates similar properties as the manganites. CeSb(0.11)Te(1.90) hosts multiple charge density wave modulation vectors and has a complex magnetic phase diagram. We confirm that this compound is an antiferromagnetic Dirac semimetal. Despite having a metallic Fermi surface, the electronic transport properties are semiconductor-like and deviate from known theoretical models. An external magnetic field induces a semiconductor metal–like transition, which results in a colossal negative magnetoresistance. Moreover, signatures of the coupling between the charge density wave and a spin modulation are observed in resistivity. This spin modulation also produces a giant anomalous Hall response. |
format | Online Article Text |
id | pubmed-10575584 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-105755842023-10-14 Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal Singha, Ratnadwip Dalgaard, Kirstine J. Marchenko, Dmitry Krivenkov, Maxim Rienks, Emile D. L. Jovanovic, Milena Teicher, Samuel M. L. Hu, Jiayi Salters, Tyger H. Lin, Jingjing Varykhalov, Andrei Ong, N. Phuan Schoop, Leslie M. Sci Adv Physical and Materials Sciences Colossal negative magnetoresistance is a well-known phenomenon, notably observed in hole-doped ferromagnetic manganites. It remains a major research topic due to its potential in technological applications. In contrast, topological semimetals show large but positive magnetoresistance, originated from the high-mobility charge carriers. Here, we show that in the highly electron-doped region, the Dirac semimetal CeSbTe demonstrates similar properties as the manganites. CeSb(0.11)Te(1.90) hosts multiple charge density wave modulation vectors and has a complex magnetic phase diagram. We confirm that this compound is an antiferromagnetic Dirac semimetal. Despite having a metallic Fermi surface, the electronic transport properties are semiconductor-like and deviate from known theoretical models. An external magnetic field induces a semiconductor metal–like transition, which results in a colossal negative magnetoresistance. Moreover, signatures of the coupling between the charge density wave and a spin modulation are observed in resistivity. This spin modulation also produces a giant anomalous Hall response. American Association for the Advancement of Science 2023-10-13 /pmc/articles/PMC10575584/ /pubmed/37831777 http://dx.doi.org/10.1126/sciadv.adh0145 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Physical and Materials Sciences Singha, Ratnadwip Dalgaard, Kirstine J. Marchenko, Dmitry Krivenkov, Maxim Rienks, Emile D. L. Jovanovic, Milena Teicher, Samuel M. L. Hu, Jiayi Salters, Tyger H. Lin, Jingjing Varykhalov, Andrei Ong, N. Phuan Schoop, Leslie M. Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title | Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title_full | Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title_fullStr | Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title_full_unstemmed | Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title_short | Colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic Dirac semimetal |
title_sort | colossal magnetoresistance in the multiple wave vector charge density wave regime of an antiferromagnetic dirac semimetal |
topic | Physical and Materials Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10575584/ https://www.ncbi.nlm.nih.gov/pubmed/37831777 http://dx.doi.org/10.1126/sciadv.adh0145 |
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