Pentagonal nanowires from topological crystalline insulators: a platform for intrinsic core–shell nanowires and higher-order topology

Author:

Hussain Ghulam12,Cuono Giuseppe23,Dziawa Piotr4,Janaszko Dorota4,Sadowski Janusz4ORCID,Kret Slawomir4ORCID,Kurowska Bogusława4,Polaczyński Jakub2,Warda Kinga25,Sattar Shahid6,Canali Carlo M.6,Lau Alexander2,Brzezicki Wojciech72,Story Tomasz42,Autieri Carmine2ORCID

Affiliation:

1. Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China

2. International Research Centre MagTop, Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, Poland

3. Consiglio Nazionale delle Ricerche (CNR-SPIN), Unitá di Ricerca presso Terzi c/o Universitá “G. DAnnunzio”, 66100 Chieti, Italy

4. Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, Poland

5. Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Gdańsk 80-233, Poland

6. Department of Physics and Electrical Engineering, Linnaeus University, 392 31 Kalmar, Sweden

7. Institute of Theoretical Physics, Jagiellonian University, ulica S. ojasiewicza 11, PL-30348 Kraków, Poland

Abstract

(a) Scanning transmission electron microscopy image of a pentagonal nanowire; the inset shows the disclination and core chain (CC). The red bands from the core connect the valence and conduction bands for (b) cation and (c) anion twin-boundaries.

Funder

Fundacja na rzecz Nauki Polskiej

Narodowe Centrum Nauki

Vetenskapsrådet

Uniwersytet Warszawski

Publisher

Royal Society of Chemistry (RSC)

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