Magnetic properties induced by the Yb-valence inhomogeneity in the layered Kondo-lattice compound Yb4RuGe8

S Yamanaka; M Hikiji; C Michioka; H Ueda; K Yoshimura

doi:10.1088/1361-648X/acda07

Magnetic properties induced by the Yb-valence inhomogeneity in the layered Kondo-lattice compound Yb₄RuGe₈

J Phys Condens Matter. 2023 Jun 12;35(36). doi: 10.1088/1361-648X/acda07.

Authors

S Yamanaka¹, M Hikiji¹, C Michioka¹, H Ueda¹, K Yoshimura¹

Affiliation

¹ Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.

PMID: 37253380
DOI: 10.1088/1361-648X/acda07

Abstract

We have successfully grown single crystals of a novel ytterbium-based layered compoundYb4RuGe8and studied its structural, magnetic, thermal, and transport properties. The magnetic susceptibility has a broad peak caused by the Kondo effect at approximately40 Kand is enhanced below15 Kowing to the development of additional magnetic correlations. An analysis with the grand-Kadowaki-Woods relation reveals that the low-temperature state except for the effect of the additional magnetic correlations is a heavy-mass Fermi liquid.

Keywords: Kondo effect; magnetic property; single crystal; valence fluctuation; ytterbium-based compound.