Inelastic helium atom scattering from Sb2Te3(111): phonon dispersion, focusing effects and surfing

Author:

Ruckhofer Adrian1234ORCID,Halbritter Simon1234,Lund Henriette E.56789,Holt Ann Julie U.56789,Bianchi Marco56789ORCID,Bremholm Martin101189ORCID,Benedek Giorgio1213141516ORCID,Hofmann Philip56789ORCID,Ernst Wolfgang E.1234ORCID,Tamtögl Anton1234ORCID

Affiliation:

1. Institute of Experimental Physics

2. Graz University of Technology

3. 8010 Graz

4. Austria

5. Department of Physics and Astronomy

6. Interdisciplinary Nanoscience Center (iNANO)

7. Aarhus University

8. 8000 Aarhus

9. Denmark

10. Center for Materials Crystallography

11. Department of Chemistry and iNANO, Aarhus University

12. Dipartimento di Scienza dei Materiali

13. Universitá degli Studi di Milano-Bicocca

14. Milano

15. Italy

16. Donostia International Physics Center (DIPC) and University of the Basque Country

Abstract

We report the surface phonon dispersion of the topological insulator Sb2Te3 together with a number of additional inelastic events, including resonance enhancement, kinematical focusing and surfing.

Funder

Austrian Science Fund

Villum Fonden

Deutsche Forschungsgemeinschaft

Danmarks Grundforskningsfond

Aarhus Universitets Forskningsfond

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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