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arXiv · 0806.4514

75As NMR study of the ternary iron arsenide BaFe2As2

H. Fukazawa·K. Hirayama·K. Kondo·T. Yamazaki·Y. Kohori·N. Takeshita·K. Miyazawa·H. Kito·H. Eisaki·A. Iyo
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Abstract

We report 75As-NMR measurements of the ternary iron arsenide BaFe2As2. 75As-NMR spectra clearly revealed that magnetic transition occurs at around 131 K in our samples, which corresponds to the emergence of spin density wave. Temperature dependence of the internal magnetic field suggests that the transition is likely of the first order. The critical-slowing-down phenomenon in the spin-lattice relaxation rate 1/T1 is not pronounced in this material.

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H. Fukazawa, K. Hirayama, K. Kondo, T. Yamazaki, Y. Kohori, N. Takeshita, K. Miyazawa, H. Kito, H. Eisaki, A. Iyo. 2008-07-14. 75As NMR study of the ternary iron arsenide BaFe2As2. https://doi.org/10.1143/jpsj.77.093706

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