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Partial ferromagnetic ordering and indirect exchange interaction in spatially anisotropic kagome antiferromagnet Cs 2Cu 3CeF {12} by Amemiya, T.; Yano, M.; Morita, K.; Umegaki, I.; Ono, T.; Tanaka, H.; Fujii, K.; Uekusa, H. is a scholarly article available to read on EtoBox.

What is Partial ferromagnetic ordering and indirect exchange interaction in spatially anisotropic kagome antiferromagnet Cs 2Cu 3CeF {12} about?

We report the crystal structure and unconventional magnetic ordering of Cs_2Cu_3CeF_{12}, which is composed of buckled kagome lattice of Cu^{2+} ions. The exchange network in the buckled kagome lattice is fairly anisotropic, so that the present spin system can be divided into two subsystems: alternating Heisenberg chains with strong antiferromagnetic exchange interactions and dangling spins. Although the direct exchange interactions between neighboring spins were found to be all antiferromagnetic, ferromagnetic magnetic ordering of the dangling spins was observed. Magnetization exhibits a plateau at one-third of the saturation magnetization. These observations can be understood in terms of the indirect interaction between dangling spins mediated by the chain spin.

Author

Amemiya, T.; Yano, M.; Morita, K.; Umegaki, I.; Ono, T.; Tanaka, H.; Fujii, K.; Uekusa, H.

Published

2009

Language

EN