Shayduk, Roman, Hallmann, Joerg, Rodriguez-Fernandez, Angel, Scholz, Markus ORCID: 0000-0001-5669-9912, Lu, Wei, Boesenberg, Ulrike, Moeller, Johannes, Zozulya, Alexey, Jiang, Man, Wegner, Ulrike, Secareanu, Radu-Costin, Palmer, Guido, Emons, Moritz, Lederer, Max, Volkov, Sergey, Lindfors-Vrejoiu, Ionela, Schick, Daniel ORCID: 0000-0001-7988-6489, Herzog, Marc, Bargheer, Matias and Madsen, Anders (2022). Femtosecond x-ray diffraction study of multi-THz coherent phonons in SrTiO3. Appl. Phys. Lett., 120 (20). MELVILLE: AIP Publishing. ISSN 1077-3118

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Abstract

We report generation of ultra-broadband longitudinal acoustic coherent phonon wavepackets in SrTiO3 (STO) with frequency components extending throughout the first Brillouin zone. The wavepackets are efficiently generated in STO using femtosecond infrared laser excitation of an atomically flat 1.6 nm-thick epitaxial SrRuO3 film. We use femtosecond x-ray diffraction at the European X-Ray Free Electron Laser Facility to study the dispersion and damping of phonon wavepackets. The experimentally determined damping constants for multi-THz frequency phonons compare favorably to the extrapolation of a simple ultrasound damping model over several orders of magnitude. (C) 2022 Author(s).

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Shayduk, RomanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hallmann, JoergUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rodriguez-Fernandez, AngelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scholz, MarkusUNSPECIFIEDorcid.org/0000-0001-5669-9912UNSPECIFIED
Lu, WeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Boesenberg, UlrikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moeller, JohannesUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zozulya, AlexeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jiang, ManUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wegner, UlrikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Secareanu, Radu-CostinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palmer, GuidoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Emons, MoritzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lederer, MaxUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Volkov, SergeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lindfors-Vrejoiu, IonelaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schick, DanielUNSPECIFIEDorcid.org/0000-0001-7988-6489UNSPECIFIED
Herzog, MarcUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bargheer, MatiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Madsen, AndersUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-681727
DOI: 10.1063/5.0083256
Journal or Publication Title: Appl. Phys. Lett.
Volume: 120
Number: 20
Date: 2022
Publisher: AIP Publishing
Place of Publication: MELVILLE
ISSN: 1077-3118
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
DYNAMICS; ATTENUATION; GENERATION; SCATTERINGMultiple languages
Physics, AppliedMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/68172

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