L-hole pockets of the Fermi surface of palladium revealed by positron annihilation spectroscopy

Article

关键词: ELECTRONIC-STRUCTURE CALCULATIONS;    GRADIENT-CORRECTION;    EFFECTIVE MASSES;    KAHANA EQUATION;    DENSITY;    ENHANCEMENT;    SYSTEMS;    SOLIDS;    METALS;    LIQUID;   

DOI  :  10.1103/PhysRevB.104.205102

来源: SCIE

【 摘 要 】

Using the combined density functional and dynamical mean-field theory, we study relativistic corrections to the Fermi surface of palladium. We find, indeed, that relativistic corrections create small hole pockets at the L-symmetry points. Furthermore, we show that the computed two-dimensional angular correlation of electron positron annihilation radiation (2D-ACAR) clearly demonstrates the existence of these L-hole pockets, which remains robust against electronic correlations. A 2D-ACAR experiment should therefore provide the smokinggun proof of the existence of L-hole pockets in the palladium Fermi surface.

【 授权许可】

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