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High Resolution Compton Scattering as a Probe of the Fermi Surface in the Iron-based Superconductor LaO1?x F x FeAs |
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| Authors: | Y J Wang Hsin Lin B Barbiellini P E Mijnarends S Kaprzyk W Al-Sawai R S Markiewicz A Bansil |
| Affiliation: | (1) Physics Department, Northeastern University, Boston, MA 02115, USA;(2) Department of Radiation, Radionuclides & Reactors, Faculty of Applied Sciences, Delft University of Technology, Delft, The Netherlands;(3) Academy of Mining and Metallurgy AGH, 30059 Krakow, Poland |
| Abstract: | We have carried out first-principles all-electron calculations of the (001)-projected 2D electron momentum density and the directional Compton profiles along the 100], 001] and 110] directions in the Fe-based superconductor LaOFeAs within the framework of the local density approximation. We identify Fermi surface features in the 2D electron momentum density and the directional Compton profiles, and discuss issues related to the observation of these features via Compton scattering experiments. |
| Keywords: | Electric momentum density Compton profile Fermi surface Pnictide |
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