Electronic structure of EuFe2As2

J Phys Condens Matter. 2013 Jun 5;25(22):225701. doi: 10.1088/0953-8984/25/22/225701. Epub 2013 May 9.

Abstract

Employing high resolution photoemission spectroscopy, we studied the temperature evolution of the electronic structure of EuFe2As2, a unique pnictide, where antiferromagnetism of the Eu layer survives within the superconducting phase due to 'FeAs' layers, achieved via substitution and/or pressure. High energy and angle resolution helped to reveal the signature of peak-dip features, having significant p orbital character and spin density wave transition induced band folding in the electronic structure. A significant spectral weight redistribution is observed below 20 K manifesting the influence of antiferromagnetic order on the conduction electrons.

Publication types

  • Research Support, Non-U.S. Gov't