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 (1)

• Spin Fluctuations and Non-Fermi-Liquid Behavior of CeNi_2Ge_2

Cited by in corpus (6)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• 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
• Low-energy magnetic response of the noncentrosymmetric heavy-fermion superconductor CePt3Si studied via inelastic neutron scattering
• Quantum Phase Transition in the Itinerant Antiferromagnet (V0.9Ti0.1)2O3
• Low energy spin fluctuations in the heavy fermion compound Ce${}_{0.925}$La${}_{0.075}$Ru${}_2$Si${}_2$