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Magnetic properties of triangular lattice antiferromagnets Ba3RB9O18 (R = Yb, Er) by Khatua, J.; Pregelj, M.; Elghandour, A.; Jaglicic, Z.; Klingeler, R.; Zorko, A.; Khuntia, P. is a scholarly article available to read on EtoBox.

What is Magnetic properties of triangular lattice antiferromagnets Ba3RB9O18 (R = Yb, Er) about?

Frustration, spin correlations and interplay between competing degrees of freedom are some of the key ingredients that underlie exotic states with fractional excitations in quantum materials. Rare-earth based two dimensional magnetic lattice wherein crystal electric field, spin-orbit coupling, anisotropy and electron correlation between rare-earth moments offer a new paradigm in this context. Herein, we present crystal structure, magnetic susceptibility and specific heat accompanied by crystal electric field calculations on the polycrystalline sample of Ba3RB9O18 (R = Yb, Er) in which R3+ ions form a perfect triangular lattice without anti-site disorder. The localized R3+ spins show neither long-range order nor spin-glass state down to 1.9 K in Ba3RB9O18. Magnetization data reveal a pseudospin Jeff = 1/2 ( Yb3+) in the Kramers doublet state and a weak antiferromagnetic interaction between Jeff = 1/2 moments in the Yb variant. On the other hand, the effective moment {\mu}eff = 8.8 {\mu}B was obtained from the Curie-Weiss fit of the low-temperature susceptibility data of Er variant suggests the admixture of higher crystal electric field states with the ground state. The Curie-Weiss f

Author

Khatua, J.; Pregelj, M.; Elghandour, A.; Jaglicic, Z.; Klingeler, R.; Zorko, A.; Khuntia, P.

Published

2022

Language

EN