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4 papers · 2 filters
Spin canting as a result of the competition between stripes and spirals in cuprates
G. Seibold, R. S. Markiewicz, J. Lorenzana
Based on the extended Hubbard model we calculate the energy of stripe and spiral ground states. We find that uniform spirals get favored by a large ratio but are unstable at…
A metal-insulator transition in 2D: Established facts and open questions
S. V. Kravchenko, M. P. Sarachik
The discovery of a metallic state and a metal-insulator transition (MIT) in two-dimensional (2D) electron systems challenges one of the most influential paradigms of modern mesosco…
Proposal to determine the Fermi-surface topology of a doped iron-based superconductor using bulk-sensitive Fourier-transform Compton scattering
Yung Jui Wang, Hsin Lin, B. Barbiellini +4
We have carried out first-principles calculations of the Compton scattering spectra to demonstrate that the filling of the hole Fermi surface in LaOFFeAs produces a d…
High resolution Compton scattering as a Probe of the Fermi surface in the Iron-based superconductor
Y. J. Wang, Hsin Lin, B. Barbiellini +5
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 […