Spin, time, and angle resolved photoemission spectroscopy on WTe2

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dc.contributor.authorFanciulli, Mauro
dc.contributor.authorSchusser, Jakub
dc.contributor.authorLee, Min-I
dc.contributor.authorEl Youbi, Zakariae
dc.contributor.authorHeckmann, Olivier
dc.contributor.authorRichter, Christine M C
dc.contributor.authorCacho, Cephise
dc.contributor.authorSpezzani, Carlo
dc.contributor.authorBresteau, David
dc.contributor.authorHergott, Jean-Francois
dc.contributor.authorD'Oliveira, Pascal
dc.contributor.authorTcherbakoff, Olivier
dc.contributor.authorRuchon, Thierry
dc.contributor.authorMinár, Jan
dc.contributor.authorHricovini, Karol
dc.date.accessioned2021-08-16T10:00:18Z
dc.date.available2021-08-16T10:00:18Z
dc.date.issued2020
dc.description.abstract-translatedWe combined a spin resolved photoemission spectrometer with a high-harmonic generation (HHG) laser source in order to perform spin, time, and angle resolved photoemission spectroscopy (STARPES) experiments on the transition metal dichalcogenide bulk WTe2, a possible Weyl type-II semimetal. Measurements at different femtosecond pump-probe delays and comparison with spin resolved one-step photoemission calculations provide insight into the spin polarization of electrons above the Fermi level in the region where Weyl points of WTe2 are expected. We observe a spin accumulation above the Weyl points region, which is consistent with a spin-selective bottleneck effect due to the presence of spin-polarized conelike electronic structure. Our results support the feasibility of STARPES with HHG, which despite being experimentally challenging provides a unique way to study spin dynamics in photoemission.en
dc.format6 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationFANCIULLI, M., SCHUSSER, J., LEE, M., EL YOUBI, Z., HECKMANN, O., RICHTER, CHMC., CACHO, C., SPEZZANI, C., BRESTEAU, D., HERGOTT, J., D'OLIVEIRA, P., TCHERBAKOFF, O., RUCHON, T., MINÁR, J., HRICOVINI, K. Spin, time, and angle resolved photoemission spectroscopy on WTe2. Physical Review Research, 2020, roč. 2, č. 1. ISSN 2643-1564.cs
dc.identifier.document-number602695200002
dc.identifier.doi10.1103/PhysRevResearch.2.013261
dc.identifier.issn2643-1564
dc.identifier.obd43933179
dc.identifier.urihttp://hdl.handle.net/11025/44928
dc.language.isoenen
dc.project.IDEF15_003/0000358/Výpočetní a experimentální design pokročilých materiálů s novými funkcionalitamics
dc.publisherAmerican Physical Societyen
dc.relation.ispartofseriesPhysical Review Researchen
dc.rights© American Physical Societyen
dc.rights.accessopenAccessen
dc.subject.translatedElectronic structureen
dc.subject.translatedTransition-metal dichalcogenideen
dc.subject.translatedWeyl semimetalen
dc.subject.translatedHigh-harmonic generationen
dc.subject.translatedKorringa-Kohn- Rostoker methoden
dc.subject.translatedSpin-resolved photoemission spectroscopyen
dc.subject.translatedTime & angle-resolved photoemission spectroscopyen
dc.titleSpin, time, and angle resolved photoemission spectroscopy on WTe2en
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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