Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface

We have studied in-situ cleaved (0001) surfaces of the magnetic Weyl semimetal Mn(3)Sn by low-temperature scanning tunneling microscopy and spectroscopy (STM/S). It was found that freshly cleaved Mn(3)Sn surfaces are covered with unknown clusters, and the application of voltage pulses in the tunneli...

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Autores principales: Yang, Hung-Hsiang, Lee, Chi-Cheng, Yoshida, Yasuo, Ikhlas, Muhammad, Tomita, Takahiro, Nugroho, Agustinus, Ozaki, Taisuke, Nakatsuji, Satoru, Hasegawa, Yukio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609646/
https://www.ncbi.nlm.nih.gov/pubmed/31273260
http://dx.doi.org/10.1038/s41598-019-45958-7
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author Yang, Hung-Hsiang
Lee, Chi-Cheng
Yoshida, Yasuo
Ikhlas, Muhammad
Tomita, Takahiro
Nugroho, Agustinus
Ozaki, Taisuke
Nakatsuji, Satoru
Hasegawa, Yukio
author_facet Yang, Hung-Hsiang
Lee, Chi-Cheng
Yoshida, Yasuo
Ikhlas, Muhammad
Tomita, Takahiro
Nugroho, Agustinus
Ozaki, Taisuke
Nakatsuji, Satoru
Hasegawa, Yukio
author_sort Yang, Hung-Hsiang
collection PubMed
description We have studied in-situ cleaved (0001) surfaces of the magnetic Weyl semimetal Mn(3)Sn by low-temperature scanning tunneling microscopy and spectroscopy (STM/S). It was found that freshly cleaved Mn(3)Sn surfaces are covered with unknown clusters, and the application of voltage pulses in the tunneling condition was needed to achieve atomically flat surfaces. STM topographs taken on the flat terrace show a bulk-terminated 1 × 1 honeycomb lattice with the Sn site brightest. First-principles calculations reveal that the brightest contrast at the Sn site originates from the surrounding surface Mn d orbitals. Tunneling spectroscopy performed on the as-cleaved and voltage-pulsed surfaces show a prominent semimetal valley near the Fermi energy.
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spelling pubmed-66096462019-07-14 Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface Yang, Hung-Hsiang Lee, Chi-Cheng Yoshida, Yasuo Ikhlas, Muhammad Tomita, Takahiro Nugroho, Agustinus Ozaki, Taisuke Nakatsuji, Satoru Hasegawa, Yukio Sci Rep Article We have studied in-situ cleaved (0001) surfaces of the magnetic Weyl semimetal Mn(3)Sn by low-temperature scanning tunneling microscopy and spectroscopy (STM/S). It was found that freshly cleaved Mn(3)Sn surfaces are covered with unknown clusters, and the application of voltage pulses in the tunneling condition was needed to achieve atomically flat surfaces. STM topographs taken on the flat terrace show a bulk-terminated 1 × 1 honeycomb lattice with the Sn site brightest. First-principles calculations reveal that the brightest contrast at the Sn site originates from the surrounding surface Mn d orbitals. Tunneling spectroscopy performed on the as-cleaved and voltage-pulsed surfaces show a prominent semimetal valley near the Fermi energy. Nature Publishing Group UK 2019-07-04 /pmc/articles/PMC6609646/ /pubmed/31273260 http://dx.doi.org/10.1038/s41598-019-45958-7 Text en © The Author(s) 2019 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
Yang, Hung-Hsiang
Lee, Chi-Cheng
Yoshida, Yasuo
Ikhlas, Muhammad
Tomita, Takahiro
Nugroho, Agustinus
Ozaki, Taisuke
Nakatsuji, Satoru
Hasegawa, Yukio
Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title_full Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title_fullStr Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title_full_unstemmed Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title_short Scanning tunneling microscopy on cleaved Mn(3)Sn(0001) surface
title_sort scanning tunneling microscopy on cleaved mn(3)sn(0001) surface
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6609646/
https://www.ncbi.nlm.nih.gov/pubmed/31273260
http://dx.doi.org/10.1038/s41598-019-45958-7
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