Enhanced surface sensitivity in AES relative to XPS observed in free argon clusters

• The surface-to-bulk intensity ratio in Auger electron spectra has been studied in comparison with core-level photoelectron spectra using free argon clusters of sizes ranging over two orders of magnitude. Enhanced surface sensitivity is observed in L2,3M2,3M2.3 Auger electron spectra compared to 2p photoelectron spectra where electrons of similar kinetic energies were recorded. This is discussed in terms of the effective attenuation length of the electrons.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

photoelectron

Auger ejection

photoelectron spectroscopy

spectroscopy

Auger electron

surface sensitivity

effective attenuation length-

synchrotron radiation photoelectron spectroscopy

emission

Publikations- och innehållstyp

art (ämneskategori)

ref (ämneskategori)