Interplay of surface and Dirac plasmons in topological insulators › Научные исследования в СПбГУ

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Interplay of surface and Dirac plasmons in topological insulators : The case of Bi2Se3. / Politano, A.; Silkin, V. M.; Nechaev, I. A.; Vitiello, M. S.; Viti, L.; Aliev, Z. S.; Babanly, M. B.; Chiarello, G.; Echenique, P. M.; Chulkov, E. V.

в: Physical Review Letters, Том 115, № 21, 216802, 18.11.2015.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Politano, A, Silkin, VM, Nechaev, IA, Vitiello, MS, Viti, L, Aliev, ZS, Babanly, MB, Chiarello, G, Echenique, PM & Chulkov, EV 2015, 'Interplay of surface and Dirac plasmons in topological insulators: The case of Bi2Se3', Physical Review Letters, Том. 115, № 21, 216802. https://doi.org/10.1103/PhysRevLett.115.216802

APA

Politano, A., Silkin, V. M., Nechaev, I. A., Vitiello, M. S., Viti, L., Aliev, Z. S., Babanly, M. B., Chiarello, G., Echenique, P. M., & Chulkov, E. V. (2015). Interplay of surface and Dirac plasmons in topological insulators: The case of Bi2Se3. Physical Review Letters, 115(21), [216802]. https://doi.org/10.1103/PhysRevLett.115.216802

Vancouver

Politano A, Silkin VM, Nechaev IA, Vitiello MS, Viti L, Aliev ZS и пр. Interplay of surface and Dirac plasmons in topological insulators: The case of Bi2Se3. Physical Review Letters. 2015 Нояб. 18;115(21). 216802. https://doi.org/10.1103/PhysRevLett.115.216802

Author

Politano, A. ; Silkin, V. M. ; Nechaev, I. A. ; Vitiello, M. S. ; Viti, L. ; Aliev, Z. S. ; Babanly, M. B. ; Chiarello, G. ; Echenique, P. M. ; Chulkov, E. V. / Interplay of surface and Dirac plasmons in topological insulators : The case of Bi2Se3. в: Physical Review Letters. 2015 ; Том 115, № 21.

BibTeX

@article{db401a77af9d41f1a0ab09342eeb79c7,

title = "Interplay of surface and Dirac plasmons in topological insulators: The case of Bi2Se3",

abstract = "We have investigated plasmonic excitations at the surface of Bi2Se3(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q≥, the loss spectrum shows a distinctive feature peaked at 104 meV. This mode varies weakly with q≥. The behavior of its intensity as a function of primary energy and scattering angle indicates that it is a surface plasmon. At larger momenta (q≥∼0.04 {\AA}-1), an additional peak, attributed to the Dirac plasmon, becomes clearly defined in the loss spectrum. Momentum-resolved loss spectra provide evidence of the mutual interaction between the surface plasmon and the Dirac plasmon of Bi2Se3. The proposed theoretical model accounting for the coexistence of three-dimensional doping electrons and two-dimensional Dirac fermions accurately represents the experimental observations. The results reveal novel routes for engineering plasmonic devices based on topological insulators.",

author = "A. Politano and Silkin, {V. M.} and Nechaev, {I. A.} and Vitiello, {M. S.} and L. Viti and Aliev, {Z. S.} and Babanly, {M. B.} and G. Chiarello and Echenique, {P. M.} and Chulkov, {E. V.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = nov,

day = "18",

doi = "10.1103/PhysRevLett.115.216802",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

RIS

TY - JOUR

T1 - Interplay of surface and Dirac plasmons in topological insulators

T2 - The case of Bi2Se3

AU - Politano, A.

AU - Silkin, V. M.

AU - Nechaev, I. A.

AU - Vitiello, M. S.

AU - Viti, L.

AU - Aliev, Z. S.

AU - Babanly, M. B.

AU - Chiarello, G.

AU - Echenique, P. M.

AU - Chulkov, E. V.

PY - 2015/11/18

Y1 - 2015/11/18

N2 - We have investigated plasmonic excitations at the surface of Bi2Se3(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q≥, the loss spectrum shows a distinctive feature peaked at 104 meV. This mode varies weakly with q≥. The behavior of its intensity as a function of primary energy and scattering angle indicates that it is a surface plasmon. At larger momenta (q≥∼0.04 Å-1), an additional peak, attributed to the Dirac plasmon, becomes clearly defined in the loss spectrum. Momentum-resolved loss spectra provide evidence of the mutual interaction between the surface plasmon and the Dirac plasmon of Bi2Se3. The proposed theoretical model accounting for the coexistence of three-dimensional doping electrons and two-dimensional Dirac fermions accurately represents the experimental observations. The results reveal novel routes for engineering plasmonic devices based on topological insulators.

AB - We have investigated plasmonic excitations at the surface of Bi2Se3(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q≥, the loss spectrum shows a distinctive feature peaked at 104 meV. This mode varies weakly with q≥. The behavior of its intensity as a function of primary energy and scattering angle indicates that it is a surface plasmon. At larger momenta (q≥∼0.04 Å-1), an additional peak, attributed to the Dirac plasmon, becomes clearly defined in the loss spectrum. Momentum-resolved loss spectra provide evidence of the mutual interaction between the surface plasmon and the Dirac plasmon of Bi2Se3. The proposed theoretical model accounting for the coexistence of three-dimensional doping electrons and two-dimensional Dirac fermions accurately represents the experimental observations. The results reveal novel routes for engineering plasmonic devices based on topological insulators.

UR - http://www.scopus.com/inward/record.url?scp=84948427948&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.115.216802

DO - 10.1103/PhysRevLett.115.216802

M3 - Article

AN - SCOPUS:84948427948

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 21

M1 - 216802

ER -

ID: 97786622