Mapping propagation of collective modes in Bi2Se3 and Bi2Te2.2Se0.8 topological insulators by near-field terahertz nanoscopy

Eva Arianna Aurelia Pogna; Leonardo Viti; Antonio Politano; Massimo Brambilla; Gaetano Scamarcio; Miriam Serena Vitiello

doi:10.1038/s41467-021-26831-6

Nature Communications (Nov 2021)

Mapping propagation of collective modes in Bi2Se3 and Bi2Te2.2Se0.8 topological insulators by near-field terahertz nanoscopy

Eva Arianna Aurelia Pogna,
Leonardo Viti,
Antonio Politano,
Massimo Brambilla,
Gaetano Scamarcio,
Miriam Serena Vitiello

Affiliations

Eva Arianna Aurelia Pogna: NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore
Leonardo Viti: NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore
Antonio Politano: Department of Physical and Chemical Sciences, University of L’Aquila
Massimo Brambilla: Dipartimento Interateneo di Fisica, Università degli Studi e Politecnico di Bari, and CNR-Istituto di Fotonica e Nanotecnologie
Gaetano Scamarcio: Dipartimento Interateneo di Fisica, Università degli Studi e Politecnico di Bari, and CNR-Istituto di Fotonica e Nanotecnologie
Miriam Serena Vitiello: NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore

DOI: https://doi.org/10.1038/s41467-021-26831-6
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 11

Abstract

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Propagation of photoexcited modes provides important information for novel quantum state. Here, the authors reveal the propagation of sub-diffractional hyperbolic phonon-polariton modes influenced by the Dirac plasmons in topological insulators.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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