By Bernd Lohmann

ISBN-10: 3540746293

ISBN-13: 9783540746294

Perspective and spin resolved Auger emission physics bargains with the theoretical and numerical description, research and interpretation of such kinds of experiments on loose atoms and molecules. This monograph derives the overall thought employing the density matrix formalism and, by way of irreducible tensorial units, so referred to as kingdom multipoles and order parameters, for parameterizing the atomic and molecular structures, respectively. it's the first booklet on perspective and spin-resolved Auger emission.

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Additional info for Angle and Spin Resolved Auger Emission: Theory and Applications to Atoms and Molecules (Springer Series on Atomic, Optical, and Plasma Physics)

Example text

Since the transition operator is proportional to a zero-rank tensor, J1 must be conserved. 71) and thus, the anisotropy parameter Bscat can be re-defined as Bscat (K kq) = Bscat (K Q , kq) δqQ . e. 70), with those for photoionization/excitation we point out two major differences. First, the parameter Bscat does not solely depend on the rank K as in the photon case but is also a function of rank + describing the polarization k and magnetic component q of the state multipoles tkq state of the incoming electron beam.

The creation of an inner shell hole. Particularly, we consider the ionization and excitation process with arbitrarily polarized photons and electrons, respectively. g. e. a photoelectron is emitted into the continuum which leaves the atom in a singly ionized excited state. For the following, we assume the incoming photon beam as arbitrarily polarized, and the initial atomic ensemble as unpolarized. Since we are not considering coincidence experiments the emitted photoelectron is not detected. e.

3 Coordinate Frame and General Symmetries If the incoming electron or photon beam is in a pure polarization state, we can always choose an appropriate coordinate frame, in order to reduce the number of parameters necessary for a full interpretation of the experimental results. 1 The Auger Effect 15 Fig. 3. The reaction plane a most simple coordinate system occurs. This is because the polarization density matrix cannot be diagonalized for an arbitrarily polarized beam. We discussed this problem for electron impact ionization (Lohmann 1984), and for the case of photoionization with an arbitrarily polarized synchrotron beam (Kleiman et al.

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Angle and Spin Resolved Auger Emission: Theory and Applications to Atoms and Molecules (Springer Series on Atomic, Optical, and Plasma Physics) by Bernd Lohmann

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