Auger transitions in one-dimensional metals

Details Auger transitions in one-dimensional metals Auger transitions in one-dimensional metals

2008-01-15

arxiv.org/abs/0801.2330v1

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 2 figures. To appear in Phys. Rev. B

Scientific paper

We present a dynamical theory of the Auger decay in one-dimensional (1D) metals described by the Tomonaga-Luttinger model. An analytic expression of the Auger current is derived in the framework of the 1-step approach, where the finite lifetime of the initial core-hole and the core-valence interaction are taken into account. This allows to capture typical dynamical features like the shake-down effect, in which the Auger spectrum shows a non-vanishing weight above the 2-step high-energy threshold. The obtained results give also a hint to understand the sizable suppression of Auger spectral weight closed to the Fermi energy recently observed in carbon nanotubes with respect to graphite.

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