Experimental signature of a topological quantum dot

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Experimental signature of a topological quantum dot. / Rider, Marie S.; Sokolikova, Maria; Hanham, S. M.; Navarro-Cia, Miguel; Haynes, Peter D; Lee, Derek; Daniele, Maddalena; Guidi, Mariangela Cestelli; Mattevi, Cecilia; Lupi, Stefano; Vincenzo, Giannini.

In: Nanoscale, Vol. 12, No. 44, 28.11.2020, p. 22817-22825.

Research output: Contribution to journalArticlepeer-review

Harvard

Rider, MS, Sokolikova, M, Hanham, SM, Navarro-Cia, M, Haynes, PD, Lee, D, Daniele, M, Guidi, MC, Mattevi, C, Lupi, S & Vincenzo, G 2020, 'Experimental signature of a topological quantum dot', Nanoscale, vol. 12, no. 44, pp. 22817-22825. https://doi.org/10.1039/D0NR06523D

APA

Rider, M. S., Sokolikova, M., Hanham, S. M., Navarro-Cia, M., Haynes, P. D., Lee, D., Daniele, M., Guidi, M. C., Mattevi, C., Lupi, S., & Vincenzo, G. (2020). Experimental signature of a topological quantum dot. Nanoscale, 12(44), 22817-22825. https://doi.org/10.1039/D0NR06523D

Vancouver

Rider MS, Sokolikova M, Hanham SM, Navarro-Cia M, Haynes PD, Lee D et al. Experimental signature of a topological quantum dot. Nanoscale. 2020 Nov 28;12(44):22817-22825. https://doi.org/10.1039/D0NR06523D

Author

Rider, Marie S. ; Sokolikova, Maria ; Hanham, S. M. ; Navarro-Cia, Miguel ; Haynes, Peter D ; Lee, Derek ; Daniele, Maddalena ; Guidi, Mariangela Cestelli ; Mattevi, Cecilia ; Lupi, Stefano ; Vincenzo, Giannini. / Experimental signature of a topological quantum dot. In: Nanoscale. 2020 ; Vol. 12, No. 44. pp. 22817-22825.

Bibtex

@article{a89480d507b946359fcfff8c223002f9,
title = "Experimental signature of a topological quantum dot",
abstract = "Topological insulator nanoparticles (TINPs) host topologically protected Dirac surface states, just like their bulk counterparts. For TINPs of radius <100 nm, quantum confinement on the surface results in the discretization of the Dirac cone. This system of discrete energy levels is referred to as a topological quantum dot (TQD) with energy level spacing on the order of Terahertz (THz), which is tunable with material-type and particle size. The presence of these discretized energy levels in turn leads to a new electron-mediated phonon-light coupling in the THz range, and the resulting mode can be observed in the absorption cross-section of the TINPs. We present the first experimental evidence of this new quantum phenomenon in Bi2Te3 topological quantum dots, remarkably observed at room temperature.",
keywords = "topology, terahertz, plasmons, topological insulator, quantum theory, quantum dots",
author = "Rider, {Marie S.} and Maria Sokolikova and Hanham, {S. M.} and Miguel Navarro-Cia and Haynes, {Peter D} and Derek Lee and Maddalena Daniele and Guidi, {Mariangela Cestelli} and Cecilia Mattevi and Stefano Lupi and Giannini Vincenzo",
year = "2020",
month = nov,
day = "28",
doi = "https://doi.org/10.1039/D0NR06523D",
language = "English",
volume = "12",
pages = "22817--22825",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "44",

}

RIS

TY - JOUR

T1 - Experimental signature of a topological quantum dot

AU - Rider, Marie S.

AU - Sokolikova, Maria

AU - Hanham, S. M.

AU - Navarro-Cia, Miguel

AU - Haynes, Peter D

AU - Lee, Derek

AU - Daniele, Maddalena

AU - Guidi, Mariangela Cestelli

AU - Mattevi, Cecilia

AU - Lupi, Stefano

AU - Vincenzo, Giannini

PY - 2020/11/28

Y1 - 2020/11/28

N2 - Topological insulator nanoparticles (TINPs) host topologically protected Dirac surface states, just like their bulk counterparts. For TINPs of radius <100 nm, quantum confinement on the surface results in the discretization of the Dirac cone. This system of discrete energy levels is referred to as a topological quantum dot (TQD) with energy level spacing on the order of Terahertz (THz), which is tunable with material-type and particle size. The presence of these discretized energy levels in turn leads to a new electron-mediated phonon-light coupling in the THz range, and the resulting mode can be observed in the absorption cross-section of the TINPs. We present the first experimental evidence of this new quantum phenomenon in Bi2Te3 topological quantum dots, remarkably observed at room temperature.

AB - Topological insulator nanoparticles (TINPs) host topologically protected Dirac surface states, just like their bulk counterparts. For TINPs of radius <100 nm, quantum confinement on the surface results in the discretization of the Dirac cone. This system of discrete energy levels is referred to as a topological quantum dot (TQD) with energy level spacing on the order of Terahertz (THz), which is tunable with material-type and particle size. The presence of these discretized energy levels in turn leads to a new electron-mediated phonon-light coupling in the THz range, and the resulting mode can be observed in the absorption cross-section of the TINPs. We present the first experimental evidence of this new quantum phenomenon in Bi2Te3 topological quantum dots, remarkably observed at room temperature.

KW - topology

KW - terahertz

KW - plasmons

KW - topological insulator

KW - quantum theory

KW - quantum dots

U2 - https://doi.org/10.1039/D0NR06523D

DO - https://doi.org/10.1039/D0NR06523D

M3 - Article

VL - 12

SP - 22817

EP - 22825

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 44

ER -