Electronic structure of delta-Pu and PuCoGa[sub 3] from photoemission and the mixed level model
- John Joseph
- John M.
- Tomasz
- Martin T.
- Elzbieta
- Aloysius J.
- David P.
- Luis A.
- Olle
The electronic structure of {delta}-phase Pu metal and the Pu-based superconductor PuCoGa{sub 5} is explored using photoelectron spectroscopy and a novel theoretical scheme. Excellent agreement between calculation and experiment defines a path forward for understanding electronic structure aspects of Pu-based materials. The photoemission results show two separate regions of 5f electron spectral intensity, one at the Fermi energy and another centered 1.2 eV below the Fermi level. A comparison is made between the photoemission data and five computational schemes for {delta}-Pu. The results for {delta}-Pu and PuCoGa{sub 5} indicate 5f electron behavior on the threshold between localized and itinerant and a broader framework for understanding the fundamental electronic properties of the Pu 5f levels in general within two configurations, one localized and one itinerant.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 977404
- Report Number(s):
- LA-UR-04-0267; LA-UR-04-267; TRN: US1002894
- Resource Relation:
- Conference: Submitted to: Materials Research Society Symposium Proceedings, Fall 2003 meeting
- Country of Publication:
- United States
- Language:
- English
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