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Atomically Sharp In...
Atomically Sharp Internal Interface in a Chiral Weyl Semimetal Nanowire
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- Mathur, Nitish (author)
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States; Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States, 1101 University Avenue
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- Yuan, Fang (author)
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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- Cheng, Guangming (author)
- Princeton Institute for Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
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- Kaushik, Sahal, 1996- (author)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Nordita SU; Stockholm University Hannes Alfvéns väg 12, SE-106 91 Stockholm, Sweden
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- Robredo, Iñigo (author)
- Donostia International Physics Center, 20018 Donostia-San Sebastián, Spain; Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany
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- Vergniory, Maia G. (author)
- Donostia International Physics Center, 20018 Donostia-San Sebastián, Spain; Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany
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- Cano, Jennifer (author)
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, United States; Center for Computational Quantum Physics, Flatiron Institute, New York, New York 10010, United States
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- Yao, Nan (author)
- Princeton Institute for Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
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- Jin, Song (author)
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States, 1101 University Avenue
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- Schoop, Leslie M. (author)
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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(creator_code:org_t)
- 2023-03-15
- 2023
- English.
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In: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 23:7, s. 2695-2702
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Internal interfaces in Weyl semimetals (WSMs) are predicted to host distinct topological features that are different from the commonly studied external interfaces (crystal-to-vacuum boundaries). However, the lack of atomically sharp and crystallographically oriented internal interfaces in WSMs makes it difficult to experimentally investigate topological states buried inside the material. Here, we study a unique internal interface known as merohedral twin boundary in chemically synthesized single-crystal nanowires (NWs) of CoSi, a chiral WSM of space group P213 (No. 198). Scanning transmission electron microscopy reveals that this internal interface is a (001) twin plane which connects two enantiomeric counterparts at an atomically sharp interface with inversion twinning. Ab initio calculations show localized internal Fermi arcs at the (001) twin plane that can be clearly distinguished from both external Fermi arcs and bulk states. These merohedrally twinned CoSi NWs provide an ideal platform to explore topological properties associated with internal interfaces in WSMs.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- chiral Weyl semimetals
- CoSi nanowires
- merohedral twinning
- scanning transmission electron microscopy
- Fermi arcs
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Mathur, Nitish
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Yuan, Fang
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Cheng, Guangming
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Kaushik, Sahal, ...
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Robredo, Iñigo
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Vergniory, Maia ...
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show more...
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Cano, Jennifer
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Yao, Nan
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Jin, Song
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Schoop, Leslie M ...
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Nano technology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Nano Letters
- By the university
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Stockholm University
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Royal Institute of Technology