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Stopping power of a degenerate electron gas for slow ions: Influence of relative kinematics on Z 1 -oscillation

Abstract : Based on the kinetic theory of stopping of a homogeneous electron gas for heavy ions with nuclear charge Z1, the intrinsic role of relative-kinematics in averaged binary energy transfers is investigated. The required quantum mechanical transport cross sections are computed with self-consistent screened potentials obtained in the Kohn-Sham mean-field approximation at embedding condition. Important changes, as a function of intruder velocities, are established in the Z1-oscillation of the resulting theoretical stopping. The changes signal the need for a proper consideration of relative kinematics in predictions for inelastic energy losses in electron gases even at moderate ion-velocities, and suggest further studies to include atomistic channels to a complete understanding.
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https://hal-utt.archives-ouvertes.fr/hal-02860638
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Submitted on : Monday, June 8, 2020 - 2:41:03 PM
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Rémi Vincent, István Nagy. Stopping power of a degenerate electron gas for slow ions: Influence of relative kinematics on Z 1 -oscillation. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2006, 74 (7), ⟨10.1103/PhysRevB.74.073302⟩. ⟨hal-02860638⟩

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