title: Spin fluctuation in heavy fermion CeRu2Si2.
abstract: Spin fluctuations of the archetypal heavy fermion compound CeRu2Si2 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 14 exchange constants, which show the long-range nature of the Ruderman-Kittel-Kasuya-Yosida interaction.
authors.affiliation: Department of Physics, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kadowaki
authors.forename: Masugu
authors.initials: M
authors.lastname: Sato
authors.forename: Shuzo
authors.initials: S
authors.lastname: Kawarazaki