Superconductivity and magnetism in Rb x Fe 2 − y Se 2 : Impact of thermal treatment on mesoscopic phase separation

@article{Weyeneth2012SuperconductivityAM,
  title={Superconductivity and magnetism in Rb x Fe 2 − y Se 2 : Impact of thermal treatment on mesoscopic phase separation},
  author={Stephen Weyeneth and Markus Bendele and Fabian O. von Rohr and P. Dluzewski and Roman Puźniak and Anna Krztoń-Maziopa and Saskia Bosma and Zurab Guguchia and Rustem Khasanov and Zurab Shermadini and A. Amato and Ekaterina Pomjakushina and Kazimierz Conder and Andreas Schilling and Hugo Keller},
  journal={Physical Review B},
  year={2012},
  volume={86},
  pages={134530}
}
An extended study of the superconducting and normal-state properties of various as-grown and post-annealed Rb${}_{x}$Fe${}_{2\ensuremath{-}y}$Se${}_{2}$ single crystals is presented. Magnetization experiments evidence that annealing of Rb${}_{x}$Fe${}_{2\ensuremath{-}y}$Se${}_{2}$ at 413 K, well below the onset of phase separation ${T}_{\mathrm{p}}\ensuremath{\simeq}489$ K, neither changes the magnetic nor the superconducting properties of the crystals. In addition, annealing at 563 K, well… 

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* Electronic address: wstephen@physik.uzh.ch

    La Sapienza"-P. le Aldo Moro 2, I-00185 Roma, Italy. ‡ On leave from Faculty of Chemistry

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