AI Article Synopsis
- The Fermi surface measurements in LaFePO via de Haas-van Alphen oscillations reveal that Fermi pockets are smaller than predicted by first-principle calculations.
- This discrepancy indicates a shift in energy levels of hole and electron bands compared to local-density approximations.
- The observed energy shift supports the idea of strong particle-hole asymmetry in pnictides and serves as indirect evidence for significant interband scattering in these materials.
Article Abstract
Recent measurements of the Fermi surface with de Haas-van Alphen oscillations in LaFePO showed a shrinking of the Fermi pockets with respect to first-principle calculations, suggesting an energy shift of the hole and electrons bands with respect to local-density approximations. We show that this shift is a natural consequence of the strong particle-hole asymmetry of electronic bands in pnictides, and that it provides an indirect experimental evidence of a dominant interband scattering in these systems.
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| http://dx.doi.org/10.1103/PhysRevLett.103.046404 | DOI Listing |
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