Anisotropic re-entrant spin-glass features in a metallic kagome lattice, Tb3Ru4Al12. (February 2019)

• Record Type: Journal Article
• Authors: Sampathkumaran, E.V.; Iyer, Kartik K.; Upadhyay, Sanjay K.; Andreev, A.V.
• Is Part Of: Solid state communications. Volume 288(2019)
• Page Start: 64
• Page End: 67
• Publication Date: 2019-02
• Subjects: A. Kagome lattice -- B. Tb3Ru4Al12 -- C. spin-glass -- D. Geometrical frustration; Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2018.11.015
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: We present the results of ac and dc magnetic susceptibility and isothermal magnetization measurements ( T = 2–300 K) on the single crystals of a metallic kagome lattice, Tb3 Ru4 Al12, reported recently to undergo reentrant magnetism with the onset of long range antiferromagnetic order below ( T N =) 22 K. The magnetization data obtained on the crystal with the c -axis orientation along magnetic-field reveal spin-glass-like characteristics near 17 K (below T N ). However, for the orientation along basal plane, such glassy anomalies are not observable above 2 K. In this respect, this compound behaves like an 'anisotropic' re-entrant spin-glass. Possible implications of this finding to the field of 'geometrically frustrated magnetism' are considered. Highlights: Tb3 Ru4 Al12, is one of the rare intermetallics with kagome lattice features. This compound exhibits Néel order at 22 K. Spin-glass features are seen below about 17 K along c-direction only. Anisotropic spin-glass feature is possibly due to geometrical frustration.