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- Title
Quest for Band Renormalization and Self-Energy in Correlated f-Electron Systems.
- Authors
Durakiewicz, T.; Riseborough, P. S.; Batista, C. D.; Yang, Y.; Oppeneer, P. M.; Joyce, J. J.; Bauer, E. D.; Graham, K. S.
- Abstract
Coexisting low-energy scales are observed in f-electron materials. The information about some of low-energy scales is imprinted in the electron self-energy, which can be measured by angle-resolved photoemission (ARPES). Such measurements in d-electron materials over the last decade were based on high energy- and momentum-resolution ARPES techniques used to extract the self-energy information from measured spectra. Simultaneously, many-body theoretical approaches have been developed to find a link between the self-energy and many-body interactions. Here we show the transcription of such methods from d-electrons to f-electrons by presenting the first example of low energy scales in the f-electron material USb2, measured with synchrotron-based ARPES. The proposed approach will help in answering the fundamental questions about the complex nature of the heavy fermion state.
- Subjects
ELECTRON emission research; PHOTOEMISSION; FERMIONS; PARTICLES (Nuclear physics); PHOTOELECTRONS; ENERGY development; KINETIC theory of matter; PHONONS; QUASIPARTICLES
- Publication
Acta Physica Polonica: A, 2010, Vol 117, Issue 2, p264
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.117.264