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

doi:10.1143/JPSJ.77.093706

75As NMR study of the ternary iron arsenide BaFe2As2

Superconductivity 2009-11-13 v3 Strongly Correlated Electrons

Authors: 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.

Keywords

75As NMR BaFe2As2 iron arsenide magnetic transition spin density wave first-order transition spin-lattice relaxation rate

Cite

@article{arxiv.0806.4514,
  title  = {75As NMR study of the ternary iron arsenide BaFe2As2},
  author = {H. Fukazawa and K. Hirayama and K. Kondo and T. Yamazaki and Y. Kohori and N. Takeshita and K. Miyazawa and H. Kito and H. Eisaki and A. Iyo},
  journal= {arXiv preprint arXiv:0806.4514},
  year   = {2009}
}

Comments

To be published in J. Phys. Soc. Jpn

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