Volume 86, Number 1, April 2009
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||22 April 2009|
Heavy-anion solvation of polarity fluctuations in pnictides
Department of Physics and Astronomy, University of British Columbia - Vancouver, BC V6T-1Z1, Canada
2 Institute Lorentz for Theoretical Physics, Leiden University - P.O. Box 9506, 2300 RA Leiden, The Netherlands, EU
3 Institute for Molecules and Materials, Radboud Universiteit Nijmegen - P.O. Box 9010, 6500 GL Nijmegen, The Netherlands, EU
Corresponding author: firstname.lastname@example.org
Accepted: 15 March 2009
Once again the world of condensed matter has been surprised by the discovery of yet another class of high-temperature superconductors. The first reactions would of course be that these iron-pnictide– and iron-chalcogenide–based materials must in some way be related to the copper-oxide–based superconductors for which a large number of theories exist although a general consensus regarding the correct theory has not yet been reached. Here, we point out that the basic physical paradigm of the new iron-based superconductors is entirely different from the cuprates. Their fundamental properties, structural and electronic, are dominated by the exceptionally large pnictide electronic polarizabilities.
PACS: 71.10.-w – Theories and models of many-electron systems / 74.20.-z – Theories and models of superconducting state
© EPLA, 2009
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