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Experimental Benchmarking of Pu Electronic Structure

Published online by Cambridge University Press:  26 February 2011

James G Tobin ,
K T Moore ,
B W Chung ,
M A Wall ,
A J Schwartz ,
B B Ebbinghaus ,
M T Butterfield ,
N E Teslich Jr ,
R A Bliss  and
S A Morton
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James G Tobin
Affiliation:
[email protected], LLNL, CMS, 7000 East Ave, Livermore, CA, 94550, United States, 925-422-7247, 925-423-7040
K T Moore
Affiliation:
[email protected]
B W Chung
Affiliation:
[email protected]
M A Wall
Affiliation:
[email protected]
A J Schwartz
Affiliation:
[email protected]
B B Ebbinghaus
Affiliation:
[email protected]
M T Butterfield
Affiliation:
[email protected]
N E Teslich Jr
Affiliation:
[email protected]
R A Bliss
Affiliation:
[email protected]
S A Morton
Affiliation:
[email protected]
S W Yu
Affiliation:
[email protected]
T Komesu
Affiliation:
[email protected]
G D Waddill
Affiliation:
[email protected]
G Van Der Laan
Affiliation:
[email protected]
A L Kutepov
Affiliation:
[email protected]
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Abstract

The standard method to determine the band structure of a condensed phase material is to (1) obtain a single crystal with a well defined surface and (2) map the bands with angle resolved photoelectron spectroscopy (occupied or valence bands) and inverse photoelectron spectroscopy (unoccupied or conduction bands). Unfortunately, in the case of Pu, the single crystals of Pu are either nonexistent, very small and/or having poorly defined surfaces. Furthermore, effects such as electron correlation and a large spin-orbit splitting in the 5f states have further complicated the situation. Thus, we have embarked upon the utilization of unorthodox electron spectroscopies, to circumvent the problems caused by the absence of large single crystals of Pu with well-defined surfaces. Our approach includes the techniques of resonant photoelectron spectroscopy [1], x-ray absorption spectroscopy [1,2,3,4], electron energy loss spectroscopy [2,3,4], Fano Effect measurements [5], and Bremstrahlung Isochromat Spectroscopy [6], including the utilization of micro-focused beams to probe single-crystallite regions of polycrystalline Pu samples. [2,3,6]

Keywords

Puelectronic structureactinide
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 893: Symposium JJ – Actinides 2005 – Basic Science, Applications and Technology , 2005 , 0893-JJ03-05
Copyright
Copyright © Materials Research Society 2006

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References

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