Lateral Quantum Well States on Pb Films Grown on Cu Step Surface

ORAL

Abstract

The highly ordered Pb films were found to grow on Cu step surface as a ``magic'' heteroepitaxial grown model. The lateral quantum well states in these Pb have been investigated by angle-resolved photoemission. Across the step direction, the quantum well state display a dispersive character, with periodicity in reciprocal space defined by the step superlattice geometry. These observations are compared and analyzed with \textit{ab initio} calculations based on the full-potential linearized augmented plane wave method.

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Authors

  • Pingheng Zhou

    • Louisiana State University, Baton Rouge LA 70806, USA

  • Yang Liu

    • Department of Physics, University of Illinois at Urbana-Champaign,1110 West Green Street, Urbana, Illinois 61801-3080, USA

  • Tom Miller

    • Department of Physics, University of Illinois at Urbana-Champaign,1110 West Green Street, Urbana, Illinois 61801-3080, USA

  • Tai-Chang Chiang

    • Department of Physics, University of Illinois at Urbana-Champaign,1110 West Green Street, Urbana, Illinois 61801-3080, USA

  • Paolo Moras

    • Istituto di Struttura Materia, Consiglio Nazionale delle Ricerche, Trieste, Italy

  • Carlo Carbone

    • Istituto di Struttura Materia, Consiglio Nazionale delle Ricerche, Trieste, Italy