Spin Fluctuation in Heavy Fermion CeRu₂Si₂

2003/10/31 by Hiroaki Kadowaki, Masugu Sato, Shuzo Kawarazaki · 1 citation
Physics and Astronomy · #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.92.097204

published as Phys. Rev. Lett. 92, 097204 (2004) · 5 pages, 3 figures, submitted to PRL

arxiv created 2003/12/08 · arxiv updated 2009/12/01

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 fourteen exchange constants, which show the long-range nature of the Ruderman-Kittel-Kasuya-Yosida interaction.

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