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Title:Hot-carrier and optical-phonon ultrafast dynamics in the topological insulator Bi2Te3 upon iron deposition on its surface
Authors:ID Weis, M, University of Silesia (Author)
ID Balin, K, University of Silesia (Author)
ID Sobol, T, University of Silesia (Author)
ID Ciavardini, A, University of Nova Gorica (Author)
ID Vaudel, G, Institut des Molécules et Matériaux du Mans (Author)
ID Juvè, V, Institut des Molécules et Matériaux du Mans (Author)
ID Arnaud, B, Institut des Molécules et Matériaux du Mans (Author)
ID Ressel, Barbara, University of Nova Gorica (Author)
ID Stupar, M, University of Nova Gorica (Author)
ID Prince, K.C., Elettra Sincrotrone Trieste (Author)
ID De Ninno, Giovanni, University of Nova Gorica (Author)
ID Ruello, P, Institut des Molécules et Matériaux du Mans (Author)
ID Szade, J, University of Silesia (Author)
Files:.pdf PhysRevB.104.245110.pdf (2,90 MB)
MD5: A84E6CC20DC1CC9B31E48CCC6AD16660
 
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:This paper presents a complete study of electronic structures and photoexcited carrier dynamics in topological insulators capped with iron and iron oxide. We combine static and time-resolved angle-resolved photoemission spectroscopies (ARPES, TR-ARPES) with time-resolved optical methods (transient optical reflectivity and transmission). Both single crystal and thin films of Bi2Te3 are studied. We show that monolayers of iron and iron oxide significantly affect the electronic band structure at the interface by shifting the Fermi level into the conduction band, which we explain by a band bending effect, and is confirmed by in situ XPS measurements
Keywords:time resolved spectroscopies, topological insulators, interfaces
Publication version:Version of Record
Year of publishing:2021
Number of pages:12
Numbering:245110, 104
PID:20.500.12556/RUNG-7064 New window
COBISS.SI-ID:89128195 New window
DOI:10.1103/PhysRevB.104.245110 New window
NUK URN:URN:SI:UNG:REP:B6EPYAXL
Publication date in RUNG:13.12.2021
Views:3124
Downloads:30
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Record is a part of a journal

Title:PHYSICAL REVIEW B
Shortened title:PRB
Year of publishing:2021

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:13.12.2021

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