Palladium(Pd)
Rhodium(Rh)
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The animation shows the complete 3D Fermi surface tomography of single crystals Pd(001) and Rh(001), mapped using soft X-ray photon energies from 34 eV up to 660 eV. By changing the energy of incident light, the momentum image at different kz can be observed. The green overlay illustrates the intersections between the corresponding momentum disc and the first two Brillouin zone boundary in the nearly-free electron final-state model. Applicability and limitations of the nearly-free electron final state model in photoemission are discussed using a complex band structure model supported by experimental evidence. This showcases the potential for bridging theory and experiment in the study of Fermi surfaces, paving the way for future advancements in our understanding of the electronic properties of materials. Reference X. L. Tan, K. Hagiwara , Y. J. Chen, J. Schusser, I. Cojocariu, D. Baranowski, V. Feyer, J. Minár, C.M. Schneider and C. Tusch, Soft X-ray Fermi surface tomography of palladium and rhodium via momentum microscopy, Ultramicroscopy 253, 113820 (2023). |