The electron-phonon interaction at deep Bi 2 Te3-semiconductor interfaces from Brillouin light scattering
| Autor: | Francisco Guinea, P. Lucignano, Yuxin Song, Floriana Lombardi, Sophie Charpentier, Marco Bernasconi, Boguslaw Mroz, Giorgio Benedek, Davide Campi, M. Wiesner, Arturo Tagliacozzo, Shunchong Wang, A. Trzaskowska |
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| Přispěvatelé: | Wiesner, M., Trzaskowska, A., Mroz, B., Charpentier, S., Wang, S., Song, Y., Lombardi, F., Lucignano, P., Benedek, G., Campi, D., Bernasconi, M., Guinea, F., Tagliacozzo, A., Wiesner, M, Trzaskowska, A, Mroz, B, Charpentier, S, Wang, S, Song, Y, Lombardi, F, Lucignano, P, Benedek, G, Campi, D, Bernasconi, M, Guinea, F, Tagliacozzo, A |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Phonon lcsh:Medicine 02 engineering and technology Electrical Engineering Electronic Engineering Information Engineering 01 natural sciences Article Light scattering Condensed Matter::Materials Science National Graphene Institute Brillouin scattering Condensed Matter::Superconductivity 0103 physical sciences General phonon lcsh:Science 010306 general physics Penetration depth FIS/03 - FISICA DELLA MATERIA Multidisciplinary Condensed matter physics business.industry lcsh:R Surface phonon Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Brillouin zone Semiconductor Topological insulator electron-phonon interaction ResearchInstitutes_Networks_Beacons/national_graphene_institute lcsh:Q Condensed Matter::Strongly Correlated Electrons 0210 nano-technology business |
| Zdroj: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-12 (2017) Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia instname Scientific Reports (2045-2322) vol.7(2017) Wiesner, M, Trzaskowska, A, Mroz, B, Charpentier, S, Wang, S, Song, Y, Lombardi, F, Lucignano, P, Benedek, G, Campi, D, Bernasconi, M, Guinea, F & Tagliacozzo, A 2017, ' The electron-phonon interaction at deep Bi 2 Te3-semiconductor interfaces from Brillouin light scattering ', Scientific Reports, vol. 7, no. 1, 16449 . https://doi.org/10.1038/s41598-017-16313-5 Wiesner, M, Trzaskowska, A, Mroz, B, Charpentier, S, Wang, S, Song, Y, Lombardi, F, Lucignano, P, Benedek, G, Campi, D, Bernasconi, M, Guinea, F & Tagliacozzo, A 2017, ' The electron-phonon interaction at deep Bi 2 Te 3-semiconductor interfaces from Brillouin light scattering ' Scientific Reports, vol 7, no. 1, 16449 . DOI: 10.1038/s41598-017-16313-5 |
| ISSN: | 2045-2322 |
| Popis: | It is shown that the electron-phonon interaction at a conducting interface between a topological insulator thin film and a semiconductor substrate can be directly probed by means of high-resolution Brillouin light scattering (BLS). The observation of Kohn anomalies in the surface phonon dispersion curves of a 50 nm thick Bi2Te3 film on GaAs, besides demonstrating important electron-phonon coupling effects in the GHz frequency domain, shows that information on deep interface electrons can be obtained by tuning the penetration depth of optically-generated surface phonons so as to selectively probe the interface region, as in a sort of quantum sonar. |
| Databáze: | OpenAIRE |
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