Feasibility of measuring surface electron spin dynamics by inelastic scattering of metastable helium atoms

M. El-Batanouny, G. Murthy, C. R. Willis, S. Kais, V. Staemmler

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Abstract

The application of inelastic scattering of monoenergetic beams of metastable 23S helium atoms (He*) from surfaces of magnetic insulators to study the dynamical properties of surface electron-spin systems is considered. The study is based on a calculation of the differential inelastic reflection coefficient for magnetic scattering using a distorted-wave Born approximation approach. The NiO(001) surface is used as an example. The adiabatic scattering potential as well as the exchange coupling between a metastable He atom and the surface electron spins are determined by a configuration interaction calculation for an embedded NiO cluster model. The efficiency of measuring an inelastic magnetic event based on this calculation is estimated to be ∼ 10-6.

Original languageEnglish
Pages (from-to)7391-7402
Number of pages12
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number11
Publication statusPublished - 15 Sep 1998
Externally publishedYes

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ASJC Scopus subject areas

  • Condensed Matter Physics

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