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An experimental set...
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Berntsen, Magnus H.KTH,Materialfysik, MF
(författare)
An experimental setup for high resolution 10.5 eV laser-based angle-resolved photoelectron spectroscopy using a time-of-flight electron analyzer
- Artikel/kapitelEngelska2011
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AIP Publishing,2011
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LIBRIS-ID:oai:DiVA.org:kth-46858
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-46858URI
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https://doi.org/10.1063/1.3637464DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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QC 20111107
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We present an experimental setup for laser-based angle-resolved time-of-flight photoemission. Using a picosecond pulsed laser, photons of energy 10.5 eV are generated through higher harmonic generation in xenon. The high repetition rate of the light source, variable between 0.2 and 8 MHz, enables high photoelectron count rates and short acquisition times. By using a time-of-flight analyzer with angle-resolving capabilities, electrons emitted from the sample within a circular cone of up to +/- 15 degrees can be collected. Hence, simultaneous acquisition of photoemission data for a complete area of the Brillouin zone is possible. The current photon energy enables bulk sensitive measurements, high angular resolution, and the resulting covered momentum space is large enough to enclose the entire Brillouin zone in cuprate high-T(c) superconductors. Fermi edge measurements on polycrystalline Au shows an energy resolution better than 5 meV. Data from a test measurement of the Au(111) surface state are presented along with measurements of the Fermi surface of the high-T(c) superconductor Bi(2)Sr(2)CaCu(2)O(8+delta) (Bi2212).
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Götberg, OlofKTH,Materialfysik, MF(Swepub:kth)u18djxjq
(författare)
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Tjernberg, OscarKTH,Materialfysik, MF(Swepub:kth)u10ilx56
(författare)
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KTHMaterialfysik, MF
(creator_code:org_t)
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Ingår i:Review of Scientific Instruments: AIP Publishing82:9, s. 095113-0034-67481089-7623
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