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has been cited by the following article:

• TITLE: Co and Phthalocyanine Overlayers on the Quantum-Well System Co(001)/Cu: Spin-Polarized Electron Reflection Experiments

  AUTHORS: Etienne Urbain, Guillaume Garreau, Patrick Wetzel, Samy Boukari, Eric Beaurepaire, Martin Bowen, Wolfgang Weber

  KEYWORDS: Quantum-Well Resonances, Spin-Polarized Electron Reflection

  JOURNAL NAME: Journal of Modern Physics, Vol.9 No.5, April 16, 2018

  ABSTRACT: The influence of a Co or phthalocyanine (Pc) molecular overlayer on the properties of quantum-well resonances (QWR) in Cu layers atop Co(001) is studied by means of spin-polarized electron reflection. For Co atoms and Pc molecules, an energy shift of the QWR-induced signal is observed with increasing coverage and is attributed to a variation of the electron reflection phase at the Cu/Co and Cu/Pc interface. For Co we find a linear energy shift in the Cu QWR energy position with increasing coverage down to the sub-monolayer regime. This shows that the phase accumulation model remains accurate within the sub-monolayer regime of a discontinuous interface. An opposite sign in the energy shift between Co and Pc overlayers could reflect an opposite impact on the Cu surface work function of overlayer adsorption.