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Spin Fluctuation in Heavy Fermion CeRu_2Si_2

Hiroaki Kadowaki·Masugu Sato·Shuzo Kawarazaki
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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.

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Hiroaki Kadowaki, Masugu Sato, Shuzo Kawarazaki. 2003-12-08. Spin Fluctuation in Heavy Fermion CeRu_2Si_2. https://doi.org/10.1103/physrevlett.92.097204

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