Neutron diffraction study of a metallic kagome lattice, Tb3Ru4Al12

Abstract

We present the results of neutron diffraction studies on polycrystals of a metallic kagome lattice, Tb3Ru4Al12, reported recently to undergo reentrant magnetism, with the onset of long range antiferromagnetic order below (TN=) 22 K and spin-glass features below about 17 K. The present results reveal long-range antiferromagnetic order of an incommensurate type with the moments oriented along c-axis at all temperatures below TN. There are however notable changes in the T dependence of propagation vector along b-axis across 17 K. An observation of interest is that there is no decrease of intensity of magnetic Bragg peaks on entrance into the glassy phase (that is, below 17 K). This finding suggests that the magnetism of this compound is an exotic one and we wonder whether this compound is an example for dynamical spin-glass freezing phenomenon, as a consequence of geometrical frustration.

arXiv comment17 pages, 6 figures

References in corpus (6)

• Slow Magnetic Order-Order Transition in the Spin Chain Antiferromagnet Ca3Co2O6
• Magnetic behaviour of quasi-one-dimensional oxides, Ca${}_3$Co${}_{(}1+x)$Mn${}_{1-x}$O${}_6$
• Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
• Signature of frustrated moments in quantum critical CePd${}_{1-x}$Ni${}_x$Al
• Magnetic behavior of metallic kagome lattices, Tb3Ru4Al12 and Er3Ru4Al12
• Anisotropic re-entrant spin-glass features in a metallic kagome lattice, Tb3Ru4Al12

Cited by in corpus (1)

• Ordering phenomena of spin trimers accompanied by large geometrical Hall effect