(π, π) electronic order in iron arsenide superconductors

V. B. Zabolotnyy, D. S. Inosov, D. V. Evtushinsky, A. Koitzsch, A. A. Kordyuk, G. L. Sun, J. T. Park, D. Haug, V. Hinkov, A. V. Boris, C. T. Lin, M. Knupfer, A. N. Yaresko, B. Büchner, A. Varykhalov, R. Follath and S. V. Borisenko ()
Additional contact information
V. B. Zabolotnyy: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
D. S. Inosov: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
D. V. Evtushinsky: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
A. Koitzsch: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
A. A. Kordyuk: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
G. L. Sun: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
J. T. Park: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
D. Haug: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
V. Hinkov: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
A. V. Boris: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
C. T. Lin: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
M. Knupfer: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
A. N. Yaresko: Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
B. Büchner: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany
A. Varykhalov: Elektronenspeicherring BESSY II, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
R. Follath: Elektronenspeicherring BESSY II, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
S. V. Borisenko: Institute for Solid State Research, IFW-Dresden, PO Box 270116, 01171 Dresden, Germany

Nature, 2009, vol. 457, issue 7229, 569-572

Abstract: Iron-arsenic superconductors: order restored Electron density waves have been observed in many families of superconductors, and are often considered a prerequisite for superconductivity. Recent work on iron-arsenic (or iron pnictide) compounds revealed no apparent link between density waves and superconductivity. But that link may be back on the agenda: Zabolotnyy et al. report that there is order, of a kind, in the electronic structure of Ba1−x KxFe2As2. The electronic order coexists with superconductivity and persists up to room temperature.

Date: 2009
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DOI: 10.1038/nature07714

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