Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy

The quantification of surface acoustic waves (SAWs) in LiNbO3 piezoelectric crystals by stroboscopic X-ray photoemission electron microscopy (XPEEM), with a temporal smearing below 80 ps and a spatial resolution below 100 nm, is reported. The contrast mechanism is the varying piezoelectric surface p...

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Authors: Foerster, Michael, Statuto, Nahuel, Casals Montserrat, Blai, Hernández Mínguez, Alberto, Finizio, Simone, Mandziak, Ania, Aballe, Lucía, Hernández Ferràs, Joan, Macià Bros, Ferran
Format: article
Status:Published version
Publication Date:2019
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/209552
Online Access:https://hdl.handle.net/2445/209552
Access Level:Open access
Keyword:Ones acústiques de superfície
Microscòpia electrònica
Fotoemissió
Acoustic surface waves
Electron microscopy
Photoemission
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oai_identifier_str oai:diposit.ub.edu:2445/209552
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spelling Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopyFoerster, MichaelStatuto, NahuelCasals Montserrat, BlaiHernández Mínguez, AlbertoFinizio, SimoneMandziak, AniaAballe, LucíaHernández Ferràs, JoanMacià Bros, FerranOnes acústiques de superfícieMicroscòpia electrònicaFotoemissióAcoustic surface wavesElectron microscopyPhotoemissionThe quantification of surface acoustic waves (SAWs) in LiNbO3 piezoelectric crystals by stroboscopic X-ray photoemission electron microscopy (XPEEM), with a temporal smearing below 80 ps and a spatial resolution below 100 nm, is reported. The contrast mechanism is the varying piezoelectric surface potential associated with the SAW phase. Thus, kinetic energy spectra of photoemitted secondary electrons measure directly the SAW electrical amplitude and allow for the quantification of the associated strain. The stroboscopic imaging combined with a deliberate detuning allows resolving and quantifying the respective standing and propagating components of SAWs from a superposition of waves. Furthermore, standing-wave components can also be imaged by low-energy electron microscopy (LEEM). Our method opens the door to studies that quantitatively correlate SAWs excitation with a variety of sample electronic, magnetic and chemical properties.Journal of Synchrotron Radiation2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/209552Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1107/S1600577518015370Journal of Synchrotron Radiation, 2019, vol. 26, p. 184-193https://doi.org/10.1107/S1600577518015370(c) Foerster, Michael. et al., 2023info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2095522026-05-27T06:46:51Z
dc.title.none.fl_str_mv Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
title Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
spellingShingle Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
Foerster, Michael
Ones acústiques de superfície
Microscòpia electrònica
Fotoemissió
Acoustic surface waves
Electron microscopy
Photoemission
title_short Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
title_full Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
title_fullStr Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
title_full_unstemmed Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
title_sort Qu­antification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy
dc.creator.none.fl_str_mv Foerster, Michael
Statuto, Nahuel
Casals Montserrat, Blai
Hernández Mínguez, Alberto
Finizio, Simone
Mandziak, Ania
Aballe, Lucía
Hernández Ferràs, Joan
Macià Bros, Ferran
author Foerster, Michael
author_facet Foerster, Michael
Statuto, Nahuel
Casals Montserrat, Blai
Hernández Mínguez, Alberto
Finizio, Simone
Mandziak, Ania
Aballe, Lucía
Hernández Ferràs, Joan
Macià Bros, Ferran
author_role author
author2 Statuto, Nahuel
Casals Montserrat, Blai
Hernández Mínguez, Alberto
Finizio, Simone
Mandziak, Ania
Aballe, Lucía
Hernández Ferràs, Joan
Macià Bros, Ferran
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ones acústiques de superfície
Microscòpia electrònica
Fotoemissió
Acoustic surface waves
Electron microscopy
Photoemission
topic Ones acústiques de superfície
Microscòpia electrònica
Fotoemissió
Acoustic surface waves
Electron microscopy
Photoemission
description The quantification of surface acoustic waves (SAWs) in LiNbO3 piezoelectric crystals by stroboscopic X-ray photoemission electron microscopy (XPEEM), with a temporal smearing below 80 ps and a spatial resolution below 100 nm, is reported. The contrast mechanism is the varying piezoelectric surface potential associated with the SAW phase. Thus, kinetic energy spectra of photoemitted secondary electrons measure directly the SAW electrical amplitude and allow for the quantification of the associated strain. The stroboscopic imaging combined with a deliberate detuning allows resolving and quantifying the respective standing and propagating components of SAWs from a superposition of waves. Furthermore, standing-wave components can also be imaged by low-energy electron microscopy (LEEM). Our method opens the door to studies that quantitatively correlate SAWs excitation with a variety of sample electronic, magnetic and chemical properties.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/209552
url https://hdl.handle.net/2445/209552
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1107/S1600577518015370
Journal of Synchrotron Radiation, 2019, vol. 26, p. 184-193
https://doi.org/10.1107/S1600577518015370
dc.rights.none.fl_str_mv (c) Foerster, Michael. et al., 2023
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Foerster, Michael. et al., 2023
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Journal of Synchrotron Radiation
publisher.none.fl_str_mv Journal of Synchrotron Radiation
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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