75As NMR study of antiferromagnetic fluctuations in Ba(Fe1−xRux)2As2

@article{Dey201175AsNS,
  title={75As NMR study of antiferromagnetic fluctuations in Ba(Fe1−xRux)2As2},
  author={Tusharkanti Dey and P. Khuntia and Avinash V. Mahajan and Shilpam Sharma and Arvind Krishnasamy Bharathi},
  journal={Journal of Physics: Condensed Matter},
  year={2011},
  volume={23}
}
The evolution of 75As NMR parameters with composition and temperature was probed in the Ba(Fe1−xRux)2As2 system where Fe is replaced by isovalent Ru. While the Ru end member was found to be a conventional Fermi liquid, the composition (x = 0.5) corresponding to the highest Tc (20 K) in this system shows an upturn in the 75As below about 80 K, evidencing the presence of antiferromagnetic (AFM) fluctuations. These results are similar to those obtained in another system with isovalent substitution… 
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