3D imaging of the Fermi surface by thermal diffuse scattering.

Area of Science:

• Condensed matter physics
• Materials science

Background:

• The Fermi surface of metals dictates their electronic properties.
• Visualizing the Fermi surface is crucial for understanding electron behavior.

Purpose of the Study:

• To utilize thermal diffuse scattering (TDS) of x rays for visualizing the Fermi surface of metallic zinc.
• To demonstrate TDS as a powerful complementary technique for electronic structure studies.

Main Methods:

• X-ray scattering techniques, specifically thermal diffuse scattering (TDS) and inelastic x-ray scattering (IXS).
• Ab initio calculations for electronic structure and lattice dynamics.
• Analysis of scattered intensity anomalies.

Main Results:

• Successfully visualized lens-shaped portions of the Fermi surface in metallic zinc using TDS.
• Anomalies in scattered intensity were explained by incorporating IXS and theoretical calculations.
• Demonstrated the correlation between TDS observations and electron-phonon coupling.

Conclusions:

• Thermal diffuse scattering is a potent tool for Fermi surface visualization.
• TDS complements established methods in condensed matter physics.
• The study provides insights into electron-phonon interactions in metallic zinc.