Angle-resolved photoemission of ultrathin Pb films on Si(111)-(6x6) Au: quantum size effect

• Autorzy: Kisiel M.
• Konferencja: Surface Physics and Thin-Films Structure Seminar ; 17-21.05.2005 ; Szklarska Poręba, Poland
• Języki publikacji: EN

Abstrakty

EN

The electronic band structure of extremely thin (from 1 to 8 monoatomic layer (ML) thick) epitaxial Pb(111) films grown at low temperatures in ultrahigh vacuum (UHV) condition on Si(111)-(6x6)Au substrate is studied with angle-resolved photoelectron spectroscopy (ARPES). The morphology of the Pb film is determined with scanning tunneling microscopy (STM). Normal-emission photoelectron spectra recorded at the sample temperature of 130 K reveal quantum well states (QWS) characteristic of quantization perpendicular to the film surface. The energies of these states as a function of the number of the Pb(111) monoatomic layers are determined and compared with calculated in terms of the Bohr-Sommerfeld phase accumulation model.

Słowa kluczowe

EN

quantum wells; Pb; angle-resolved photoelectron spectroscopy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2005
• Tom: Vol. 35, nr 3
• Strony: 443--448
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Kisiel M.

• Institute of Physics and Nanotechnology Center, Maria Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, PL 20031 Lublin, Poland,

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