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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...

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Autores principales: 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.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
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.
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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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