Electron energy loss spectroscopy with parallel readout of energy and momentum

We introduce a high energy resolution electron source that matches the requirements for parallel readout of energy and momentum of modern hemispherical electron energy analyzers. The system is designed as an add-on device to typical photoemission chambers. Due to the multiplex gain, a complete phono...

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Veröffentlicht in:	Review of scientific instruments 2017-03, Vol.88 (3), p.033903-033903
Hauptverfasser:	Ibach, Harald, Bocquet, François C., Sforzini, Jessica, Soubatch, Serguei, Tautz, F. Stefan
Format:	Artikel
Sprache:	eng
Schlagworte:	Electron energy analysers Electron energy loss spectroscopy Energy Energy dissipation Energy resolution Momentum Photoelectric emission Scientific apparatus & instruments
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Beschreibung
Zusammenfassung:	We introduce a high energy resolution electron source that matches the requirements for parallel readout of energy and momentum of modern hemispherical electron energy analyzers. The system is designed as an add-on device to typical photoemission chambers. Due to the multiplex gain, a complete phonon dispersion of a Cu(111) surface was measured in 7 min with 4 meV energy resolution.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.4977529