Topological Kagome Magnet Co3Sn2S2 Thin Flakes with High Electron Mobility and Large Anomalous Hall Effect
Magnetic Weyl semimetals attract considerable interest not only for their topological quantum phenomena but also as an emerging materials class for realizing quantum anomalous Hall effect in the two-dimensional limit. A shandite compound Co3Sn2S2 with layered kagome-lattices is one such material, where vigorous efforts have been devoted to synthesize the two-dimensional crystal. Here, we report a synthesis of Co3Sn2S2 thin flakes with a thickness of 250 nm by chemical vapor transport method. We find that this facile bottom-up approach allows the formation of large-sized Co3Sn2S2 thin flakes of high-quality, where we identify the largest electron mobility (∼2600 cm2 V-1 s-1) among magnetic topological semimetals, as well as the large anomalous Hall conductivity (∼1400 Ω-1 cm-1) and anomalous Hall angle (∼32%) arising from the Berry curvature. Our study provides a viable platform for studying high-quality thin flakes of magnetic Weyl semimetal and stimulate further research on unexplored topological phenomena in the two-dimensional limit.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:20 |
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| Enthalten in: |
Nano letters - 20(2020), 10 vom: 14. Okt., Seite 7476-7481 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tanaka, M [VerfasserIn] |
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| Links: |
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| Themen: |
Anomalous Hall effect |
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| Anmerkungen: |
Date Revised 15.10.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acs.nanolett.0c02962 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM314704000 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Magnetic Weyl semimetals attract considerable interest not only for their topological quantum phenomena but also as an emerging materials class for realizing quantum anomalous Hall effect in the two-dimensional limit. A shandite compound Co3Sn2S2 with layered kagome-lattices is one such material, where vigorous efforts have been devoted to synthesize the two-dimensional crystal. Here, we report a synthesis of Co3Sn2S2 thin flakes with a thickness of 250 nm by chemical vapor transport method. We find that this facile bottom-up approach allows the formation of large-sized Co3Sn2S2 thin flakes of high-quality, where we identify the largest electron mobility (∼2600 cm2 V-1 s-1) among magnetic topological semimetals, as well as the large anomalous Hall conductivity (∼1400 Ω-1 cm-1) and anomalous Hall angle (∼32%) arising from the Berry curvature. Our study provides a viable platform for studying high-quality thin flakes of magnetic Weyl semimetal and stimulate further research on unexplored topological phenomena in the two-dimensional limit | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a anomalous Hall effect | |
| 650 | 4 | |a chemical vapor transport | |
| 650 | 4 | |a high mobility | |
| 650 | 4 | |a magnetic Weyl semimetal | |
| 650 | 4 | |a thin flake | |
| 700 | 1 | |a Fujishiro, Y |e verfasserin |4 aut | |
| 700 | 1 | |a Mogi, M |e verfasserin |4 aut | |
| 700 | 1 | |a Kaneko, Y |e verfasserin |4 aut | |
| 700 | 1 | |a Yokosawa, T |e verfasserin |4 aut | |
| 700 | 1 | |a Kanazawa, N |e verfasserin |4 aut | |
| 700 | 1 | |a Minami, S |e verfasserin |4 aut | |
| 700 | 1 | |a Koretsune, T |e verfasserin |4 aut | |
| 700 | 1 | |a Arita, R |e verfasserin |4 aut | |
| 700 | 1 | |a Tarucha, S |e verfasserin |4 aut | |
| 700 | 1 | |a Yamamoto, M |e verfasserin |4 aut | |
| 700 | 1 | |a Tokura, Y |e verfasserin |4 aut | |
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