Structural and electronic response upon hole doping of rare-earth iron oxyarsenides Nd1−xSrxFeAsO (0 < x≤ 0.2)

Karolina Kasperkiewicz; Jan-Willem G. Bos; Andrew N. Fitch; Kosmas Prassides; Serena Margadonna

doi:10.1039/B815830D

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Structural and electronic response upon hole doping of rare-earth iron oxyarsenides Nd₁₋_xSr_xFeAsO (0 < x≤ 0.2)†

Karolina Kasperkiewicz,^a Jan-Willem G. Bos,^a Andrew N. Fitch,^b Kosmas Prassides^c and Serena Margadonna*^a

Author affiliations

* Corresponding authors

^a School of Chemistry, University of Edinburgh, Edinburgh, UK
E-mail: serena.margadonna@ed.ac.uk

^b European Synchrotron Radiation Facility, Grenoble, France

^c Department of Chemistry, University of Durham, Durham, UK

Abstract

Hole doping of NdFeAsOvia partial replacement of Nd³⁺ by Sr²⁺ is a successful route to obtaining superconducting phases (T_c = 13.5 K for a Sr²⁺ content of 20%); however, the structural and electronic response with doping is different from and non-symmetric to that in the electron-doped side of the phase diagram.

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Supplementary files

Results of the structural refinements at 5 and 300 K PDF (1410K)

Article information

DOI: https://doi.org/10.1039/B815830D
Article type: Communication
Submitted: 10 Sep 2008
Accepted: 24 Nov 2008
First published: 19 Dec 2008

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Chem. Commun., 2009, 707-709

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Structural and electronic response upon hole doping of rare-earth iron oxyarsenides Nd₁₋_xSr_xFeAsO (0 < x≤ 0.2)

K. Kasperkiewicz, J. G. Bos, A. N. Fitch, K. Prassides and S. Margadonna, Chem. Commun., 2009, 707 DOI: 10.1039/B815830D

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