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Spin-orbit quantum impurity in a topological magnet

Quantum states induced by single-atomic impurities are at the frontier of physics and material science. While such states have been reported in high-temperature superconductors and dilute magnetic semiconductors, they are unexplored in topological magnets which can feature spin-orbit tunability. Her...

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Autores principales: Yin, Jia-Xin, Shumiya, Nana, Jiang, Yuxiao, Zhou, Huibin, Macam, Gennevieve, Sura, Hano Omar Mohammad, Zhang, Songtian S., Cheng, Zi-Jia, Guguchia, Zurab, Li, Yangmu, Wang, Qi, Litskevich, Maksim, Belopolski, Ilya, Yang, Xian P., Cochran, Tyler A., Chang, Guoqing, Zhang, Qi, Huang, Zhi-Quan, Chuang, Feng-Chuan, Lin, Hsin, Lei, Hechang, Andersen, Brian M., Wang, Ziqiang, Jia, Shuang, Hasan, M. Zahid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7474094/
https://www.ncbi.nlm.nih.gov/pubmed/32887890
http://dx.doi.org/10.1038/s41467-020-18111-6
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author Yin, Jia-Xin
Shumiya, Nana
Jiang, Yuxiao
Zhou, Huibin
Macam, Gennevieve
Sura, Hano Omar Mohammad
Zhang, Songtian S.
Cheng, Zi-Jia
Guguchia, Zurab
Li, Yangmu
Wang, Qi
Litskevich, Maksim
Belopolski, Ilya
Yang, Xian P.
Cochran, Tyler A.
Chang, Guoqing
Zhang, Qi
Huang, Zhi-Quan
Chuang, Feng-Chuan
Lin, Hsin
Lei, Hechang
Andersen, Brian M.
Wang, Ziqiang
Jia, Shuang
Hasan, M. Zahid
author_facet Yin, Jia-Xin
Shumiya, Nana
Jiang, Yuxiao
Zhou, Huibin
Macam, Gennevieve
Sura, Hano Omar Mohammad
Zhang, Songtian S.
Cheng, Zi-Jia
Guguchia, Zurab
Li, Yangmu
Wang, Qi
Litskevich, Maksim
Belopolski, Ilya
Yang, Xian P.
Cochran, Tyler A.
Chang, Guoqing
Zhang, Qi
Huang, Zhi-Quan
Chuang, Feng-Chuan
Lin, Hsin
Lei, Hechang
Andersen, Brian M.
Wang, Ziqiang
Jia, Shuang
Hasan, M. Zahid
author_sort Yin, Jia-Xin
collection PubMed
description Quantum states induced by single-atomic impurities are at the frontier of physics and material science. While such states have been reported in high-temperature superconductors and dilute magnetic semiconductors, they are unexplored in topological magnets which can feature spin-orbit tunability. Here we use spin-polarized scanning tunneling microscopy/spectroscopy (STM/S) to study the engineered quantum impurity in a topological magnet Co(3)Sn(2)S(2). We find that each substituted In impurity introduces a striking localized bound state. Our systematic magnetization-polarized probe reveals that this bound state is spin-down polarized, in lock with a negative orbital magnetization. Moreover, the magnetic bound states of neighboring impurities interact to form quantized orbitals, exhibiting an intriguing spin-orbit splitting, analogous to the splitting of the topological fermion line. Our work collectively demonstrates the strong spin-orbit effect of the single-atomic impurity at the quantum level, suggesting that a nonmagnetic impurity can introduce spin-orbit coupled magnetic resonance in topological magnets.
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spelling pubmed-74740942020-09-16 Spin-orbit quantum impurity in a topological magnet Yin, Jia-Xin Shumiya, Nana Jiang, Yuxiao Zhou, Huibin Macam, Gennevieve Sura, Hano Omar Mohammad Zhang, Songtian S. Cheng, Zi-Jia Guguchia, Zurab Li, Yangmu Wang, Qi Litskevich, Maksim Belopolski, Ilya Yang, Xian P. Cochran, Tyler A. Chang, Guoqing Zhang, Qi Huang, Zhi-Quan Chuang, Feng-Chuan Lin, Hsin Lei, Hechang Andersen, Brian M. Wang, Ziqiang Jia, Shuang Hasan, M. Zahid Nat Commun Article Quantum states induced by single-atomic impurities are at the frontier of physics and material science. While such states have been reported in high-temperature superconductors and dilute magnetic semiconductors, they are unexplored in topological magnets which can feature spin-orbit tunability. Here we use spin-polarized scanning tunneling microscopy/spectroscopy (STM/S) to study the engineered quantum impurity in a topological magnet Co(3)Sn(2)S(2). We find that each substituted In impurity introduces a striking localized bound state. Our systematic magnetization-polarized probe reveals that this bound state is spin-down polarized, in lock with a negative orbital magnetization. Moreover, the magnetic bound states of neighboring impurities interact to form quantized orbitals, exhibiting an intriguing spin-orbit splitting, analogous to the splitting of the topological fermion line. Our work collectively demonstrates the strong spin-orbit effect of the single-atomic impurity at the quantum level, suggesting that a nonmagnetic impurity can introduce spin-orbit coupled magnetic resonance in topological magnets. Nature Publishing Group UK 2020-09-04 /pmc/articles/PMC7474094/ /pubmed/32887890 http://dx.doi.org/10.1038/s41467-020-18111-6 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yin, Jia-Xin
Shumiya, Nana
Jiang, Yuxiao
Zhou, Huibin
Macam, Gennevieve
Sura, Hano Omar Mohammad
Zhang, Songtian S.
Cheng, Zi-Jia
Guguchia, Zurab
Li, Yangmu
Wang, Qi
Litskevich, Maksim
Belopolski, Ilya
Yang, Xian P.
Cochran, Tyler A.
Chang, Guoqing
Zhang, Qi
Huang, Zhi-Quan
Chuang, Feng-Chuan
Lin, Hsin
Lei, Hechang
Andersen, Brian M.
Wang, Ziqiang
Jia, Shuang
Hasan, M. Zahid
Spin-orbit quantum impurity in a topological magnet
title Spin-orbit quantum impurity in a topological magnet
title_full Spin-orbit quantum impurity in a topological magnet
title_fullStr Spin-orbit quantum impurity in a topological magnet
title_full_unstemmed Spin-orbit quantum impurity in a topological magnet
title_short Spin-orbit quantum impurity in a topological magnet
title_sort spin-orbit quantum impurity in a topological magnet
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7474094/
https://www.ncbi.nlm.nih.gov/pubmed/32887890
http://dx.doi.org/10.1038/s41467-020-18111-6
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