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26 April 2024

» arxiv » 1205.5219

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Electronic phase diagram of disordered Co doped BaFe2As2
F. Kurth ; K. Iida ; S. Trommler ; J. Hänisch ; K. Nenkov ; J. Engelmann ; S. Oswald ; J. Werner ; L. Schultz ; B. Holzapfel ; S. Haindl ;
Date:	23 May 2012
Abstract:	Superconducting and normal state transport properties in iron pnictides are sensitive to disorder and impurity scattering. By investigation of Ba(Fe1-xCox)2As2 thin films with varying Co concentration, we demonstrate that in the dirty limit the superconducting dome in the electronic phase diagram of Ba(Fe1-xCox)2As2 shifts towards lower doping concentrations, which differs significantly from observations in single crystals. We show that especially in the underdoped regime superconducting transition temperatures higher than 27 K are possible.
Source:	arXiv, 1205.5219
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