Electronic Correlations in Vanadium Revealed by Electron-Positron Annihilation Measurements

Abstract

The electronic structure of vanadium measured by Angular Correlation of electron-positron Annihilation Radiation (ACAR) is compared with the predictions of the combined Density Functional and Dynamical Mean-Field Theory (DMFT). Reconstructing the momentum density from five 2D projections we were able to determine the full Fermi surface and found excellent agreement with the DMFT calculations. In particular, we show that the local, dynamic self-energy corrections contribute to the anisotropy of the momentum density and need to be included to explain the experimental results.

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Cited by in corpus (6)

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• Transition from Pauli paramagnetism to Curie-Weiss behaviour in vanadium
• Momentum Density Spectroscopy of Pd: Comparison of 2D-ACAR and Compton Scattering Using a New 1D-to-2D Reconstruction Method
• Superconducting transition temperatures of pure vanadium and vanadium-titanium alloys in the presence of dynamical electronic correlations
• $L$-hole Pockets of the Palladium Fermi Surface Revealed by Positron Annihilation Spectroscopy
• Ab initio study of anomalous temperature dependence of resistivity in V-Al alloys