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|Title:||Quantum magnetic properties of the spin-12 triangular-lattice antiferromagnet Ba2La2CoTe2O12|
|Publisher:||American Physical Society|
|Citation:||Kojima, Y., Watanabe, M., Kurita, N., Tanaka, H., Matsuo, A., Kindo, K., & Avdeev, M. (2018). Quantum magnetic properties of the spin-12 triangular-lattice antiferromagnet Ba2La2CoTe2O12. Physical Review B, 98(17), 174406. doi:10.1103/PhysRevB.98.174406|
|Abstract:||We report the crystal structure of Ba2La2CoTe2O12 determined by Rietveld analysis using x-ray powder-diffraction data. It was found from magnetic measurements that Ba2La2CoTe2O12 can be described as a spin-12 triangular-lattice antiferromagnet with easy-plane anisotropy at low temperatures. This compound undergoes a magnetic phase transition at TN=3.26K to an ordered state with the 120∘ structure. The magnetization curve exhibits the one-third plateau characteristic of triangular-lattice quantum antiferromagnets. The antiferromagnetic exchange interaction and the g factors parallel and perpendicular to the c axis were evaluated to be J/kB=22K,g∥=3.5, and g⊥=4.5, respectively. ©2018 American Physical Society|
|Appears in Collections:||Journal Articles|
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