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Topological Quantum Well States in Pb/Sb Thin-Film Heterostructures.
Li, Yao; Chan, Yang-Hao; Hlevyack, Joseph A; Bowers, John W; Chou, Mei-Yin; Chiang, Tai-Chang.
Afiliación
  • Li Y; Department of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois Urbana-Champaign; Urbana, Illinois 61801, United States.
  • Chan YH; Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
  • Hlevyack JA; Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan.
  • Bowers JW; Department of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois Urbana-Champaign; Urbana, Illinois 61801, United States.
  • Chou MY; Department of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois Urbana-Champaign; Urbana, Illinois 61801, United States.
  • Chiang TC; Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan.
ACS Nano ; 18(14): 10243-10248, 2024 Apr 09.
Article en En | MEDLINE | ID: mdl-38530641
ABSTRACT
Composite topological heterostructures, wherein topologically protected states are electronically tuned due to their proximity to other matter, are key avenues for exploring emergent physical phenomena. Particularly, pairing a topological material with a superconductor such as Pb is a promising means for generating a topological superconducting phase with exotic Majorana quasiparticles, but oft-neglected is the emergence of bulklike spin-polarized states that are quite relevant to applications. Using high-resolution photoemission spectroscopy and first-principles calculations, we report the emergence of bulk-like spin-polarized topological quantum well states with long coherence lengths in Pb films grown on the topological semimetal Sb. The results establish Pb/Sb heterostructures as topological superconductor candidates and advance the current understanding of topological coupling effects required for realizing emergent physics and for designing advanced spintronic device architectures.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos