Quest for Band Renormalization and Self-Energy in Correlated f-Electron Systems

• Authors: T. Durakiewicz , P. Riseborough , C. Batista , Y. Yang , P. Oppeneer , J. Joyce , E. Bauer , K. Graham
• Languages of publication: EN

Abstracts

EN

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 USb_2, measured with synchrotron-based ARPES. The proposed approach will help in answering the fundamental questions about the complex nature of the heavy fermion state.

Keywords

EN

79.60.-i; 71.28.+d; 74.25.Jb

Discipline

• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 74.25.Jb: Electronic structure (photoemission, etc.)
• 71.28.+d: Narrow-band systems; intermediate-valence solids(for magnetic aspects, see 75.20.Hr and 75.30.Mb in magnetic properties and materials)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 2
• Pages: 264-267

Dates

published

2010-02

Contributors

author

T. Durakiewicz

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

author

P. Riseborough

• Department of Physics, Temple University, Philadelphia, PA 19122, USA

author

C. Batista

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

author

Y. Yang

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

author

P. Oppeneer

• Department of Physics and Materials Science, Uppsala University, Box 530, S-75121, Uppsala, Sweden

author

J. Joyce

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

author

E. Bauer

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

author

K. Graham

• Los Alamos National Laboratory, Condensed Matter and Thermal Physics Group, Mailstop K764, Los Alamos, NM 87545, USA

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Identifiers

DOI

10.12693/APhysPolA.117.264