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Type: Artigo de periódico
Title: Sum Rules And Inelastic Neutron Scattering In Paramagnetic Intermediate-valence Compounds
Author: Da Silva C.E.T.G.
Abstract: Exact evaluation of low-order moments of the imaginary part of the dynamic susceptibility is used to analyze inelastic neutron scattering in a paramagnetic intermediate-valence system. It is shown that (i) the second moment of χ′′(q→,ω)ω measures the mixing energy, (ii) only a weak q→ dependence of χ′′(q→,ω) is expected even in "coherent" systems, and (iii) there are no diffusive modes in the hydrodynamic regime. © 1979 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.42.1305
Date Issue: 1979
Appears in Collections:Unicamp - Artigos e Outros Documentos

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