Spin Fluctuation in Heavy Fermion CeRu_2Si_2

Abstract

Spin fluctuations of the archetypal heavy-fermion compound CeRu_2Si_2 have been investigated by neutron scattering in an entire irreducible Brillouin zone. The dynamical susceptibility is remarkably well described by the self-consistent renormalization (SCR) theory of the spin fluctuation in a phenomenological way, proving the effectiveness of the theory. The present analysis using the SCR phenomenology has allowed us to determine fourteen exchange constants, which show the long-range nature of the Ruderman-Kittel-Kasuya-Yosida interaction.

5 pages, 3 figures, submitted to PRL

References in corpus (6)

• Locally critical quantum phase transitions in strongly correlated metals
• Onset of antiferromagnetism in heavy fermion metals
• How do Fermi liquids get heavy and die?
• Spin Fluctuations and Non-Fermi-Liquid Behavior of CeNi_2Ge_2
• A Unified Theory of Dynamical Mean Field and Spin Fluctuations
• Dynamic Spin Correlation Function near the Antiferromagnetic Quantum Phase Transition of Heavy-Fermions

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• Anomalous scaling behavior of the dynamical spin susceptibility of Ce${}_{0.925}$La${}_{0.075}$Ru${}_2$Si${}_2$
• Quantum Critical Point of Itinerant Antiferromagnet in Heavy Fermion
• Fermi Surface Properties, Metamgnetic Transition and Quantum Phase Transition of CeRu${}_2$Si${}_2$ and Its Alloys Probed by the dHvA Effect--Fermi Surface Studies on the Itinerant and Localized Dichotomy of $f$ Electron Nature
• Inelastic neutron scattering study of single crystal heavy fermion YbAgGe
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• Generating the Schrodinger cat state in a nanomechanical resonator coupled to a charge qubit
• Convergence of the enhancement of the effective mass under pressure and magnetic field in heavy-fermion compounds: CeRu2Si2, CeRh2Si2, and CeIn3
• Kondo behavior, ferromagnetic correlations, and crystal fields in the heavy Fermion compounds Ce3X (X=In, Sn)
• Quantum criticality and Lifshitz transition in the Ising system CeRu2Si2: Comparison with YbRh2Si2
• Further analysis of the quantum critical point of Ce${}_{1-x}$La${}_x$Ru${}_2$Si${}_2$
• Structural and Magnetic Phase Transitions in CeCu${}_{6-x}{T}_x$ ($T$ = Ag, Pd)
• Quantum Phase Transition in the Itinerant Antiferromagnet (V0.9Ti0.1)2O3
• Evidence for magnetic clusters in stoichiometric quantum critical CeRu${}_2$Si${}_2$
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• Low energy spin fluctuations in the heavy fermion compound Ce${}_{0.925}$La${}_{0.075}$Ru${}_2$Si${}_2$