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Many of the current theoretical and conceptual issues for correlated f-electron systems involve the details of the Fermi surface and of the lineshapes of the dispersing excitations that define the Fermi surface. Progress in applying ARPES to similar issues in other correlated systems, such as the superconducting cuprates, has been faster and greater because many of these systems have larger relevant energy scales which are resolved more easily, and because they have layered structures that both cleave more easily to give smooth surfaces and also confer the simplifications of k-space mapping and improved momentum and energy resolution associated with having small photohole dispersion perpendicular to the sample surface. I will describe some recent progress in obtaining ARPES data from three dimensional f-electron materials and also some particular questions that can perhaps now be better addressed.
** Experimental Collaborators: Feng Wang (U. Michigan), J. D. Denlinger (Advanced Light Source) |
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