A photoelectron study of the alkali fluorides

✍ Scribed by R.T. Poole; J. Liesegang; R.C.G. Leckey; J.G. Jenkin

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 301 KB
• Volume: 23
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(73)80248-9

✦ Synopsis

Reche values have been dclermined for the binding energies of the outer elecuonic bands of Ihe alN.i fluorides using 40.81 eV uluaviolct photoelectron spectroscopy. An approximate difference of 1.1(l) eV belween experimental and Born model binding enclgin is attributed to polarization effects which MC treated using the theory of MOII and Littleton.

!. tntroduction

Recently flj, we reported the results of a systematic photoelectron study of the alkali chlorides. A method was reported which takes account of sample charging associated with the emission of photoelec. trons from an jnsulating material, and hence allows the precise determination of binding energies with respect to the vacuum level. In that study the observed chemical shifts of the chloride ion 3psbands were interpreted in terms of the Born model for strongly ionic crystals, and the approximate difference t-2( 1) eV between the experimental and Born model binding energies was attributed to polarization effects.