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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/14360

Title: (75)As NMR study of antiferromagnetic fluctuations in Ba(Fe(1-x)Ru(x))(2)As(2)
Authors: DEY, T
KHUNTIA, P
MAHAJAN, AV
SHARMA, S
BHARATHI, A
Issue Date: 2011
Publisher: IOP PUBLISHING LTD
Citation: JOURNAL OF PHYSICS-CONDENSED MATTER,23(47)-
Abstract: The evolution of (75)As NMR parameters with composition and temperature was probed in the Ba(Fe(1-x)Ru(x))(2)As(2) system where Fe is replaced by isovalent Ru. While the Ru end member was found to be a conventional Fermi liquid, the composition (x D 0 : 5) corresponding to the highest T(c) (20 K) in this system shows an upturn in the (75)As 1/T(1)T below about 80 K, evidencing the presence of antiferromagnetic (AFM) fluctuations. These results are similar to those obtained in another system with isovalent substitution, BaFe(2)(As(1-x)P(x))(2) (Nakai et al 2010 Phys. Rev. Lett. 105 107003) and point to a possible role of AFM fluctuations in driving superconductivity.
URI: http://dx.doi.org/10.1088/0953-8984/23/47/475701
http://dspace.library.iitb.ac.in/jspui/handle/100/14360
ISSN: 0953-8984
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