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- W2022751128 abstract "We have performed inelastic-neutron-scattering experiments on single crystals of the heavy-fermion compound ${mathrm{CeRu}}_{2}$${mathrm{Si}}_{2}$. At intermediate temperatures (25 K<T<90 K) the magnetic response, Im(ensuremath{chi}/ensuremath{omega}), is well described by a quasielastic Lorentzian as a function of energy. The half-width ensuremath{Gamma} of the Lorentzian follows a ensuremath{surd}T law. At low temperatures (T<20 K), the magnetic response, Im(ensuremath{chi}/ensuremath{omega}), seems to be better described by an inelastic peak. The half-width ensuremath{Gamma} remains temperature independent down to the lowest temperature (Tensuremath{simeq}1.7 K) and amounts about 1.2 meV yielding a Kondo temperature ${T}_{K}$=14 K. The other important result we are presenting is the existence of magnetic correlations with a modulation characterized by two incommensurate wave vectors ${mathrm{k}}_{1}$=(0.3,0,0) and ${mathrm{k}}_{2}$=(0.3,0.3,0). These magnetic correlations start to develop already at rather high temperatures (ensuremath{sim}60 K) but they saturate at Tensuremath{simeq}15 K when the magnetic response becomes inelastic. So the hybridation of 4f electrons with conduction electrons seems to prevent the divergence of the magnetic correlations which otherwise would give rise to a long-range magnetic ordering." @default.
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- W2022751128 date "1988-09-01" @default.
- W2022751128 modified "2023-10-05" @default.
- W2022751128 title "Neutron scattering study of the heavy-fermion compoundCeRu2Si2" @default.
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- W2022751128 doi "https://doi.org/10.1103/physrevb.38.4481" @default.
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