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Abstract In this paper, 133Cs nuclear magnetic resonance (NMR) measurements have been performed to investigate the magnetic properties of an A-type antiferromagnet CsCo 2 Se 2 . The field-sweeping NMR… Click to show full abstract
Abstract In this paper, 133Cs nuclear magnetic resonance (NMR) measurements have been performed to investigate the magnetic properties of an A-type antiferromagnet CsCo 2 Se 2 . The field-sweeping NMR spectra become broadened mainly due to the internal magnetic field attributed to antiferromagnetic ordering. Both T -dependence of Knight shift 133 K and T divided spin-lattice relaxation rate 1/ T 1 T provide clear evidences for the antiferromagnetic transition at ∼ 70 K. 1/ T 1 T exhibits a Curie–Weiss T -dependence down to 80 K, suggesting the development of antiferromagnetic spin fluctuations with decreasing temperature. The linear-relationship between T 1 T - T suggests that antiferromagnetic spin fluctuations are two-dimensional in the paramagnetic state.
Journal Title: Solid State Communications
Year Published: 2021
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