The Fermi surface and f-valence electron count of UPt{sub 3}.
Combining old and new de Haas-van Alphen (dHvA) and magnetoresistance data, we arrive at a detailed picture of the Fermi surface of the heavy fermion superconductor UPt{sub 3}. Our work was partially motivated by a new proposal that two 5f valence electrons per formula unit in UPt{sub 3} are localized by correlation effects--agreement with previous dHvA measurements of the Fermi surface was invoked in its support. Comprehensive comparison with our new observations shows that this 'partially localized' model fails to predict the existence of a major sheet of the Fermi surface, and is therefore less compatible with experiment than the originally proposed 'fully itinerant' model of the electronic structure of UPt{sub 3}. In support of this conclusion, we offer a more complete analysis of the fully itinerant band structure calculation, where we find a number of previously unrecognized extremal orbits on the Fermi surface.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Natural Sciences and Engineering Research Council of Canada (NSERC); Canadian Inst. of Advanced Research; Engineering and Physical Science Research Council of the UK
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 928661
- Report Number(s):
- ANL/MSD/JA-61330; TRN: US0803245
- Journal Information:
- NJP, Vol. 10, Issue 2008
- Country of Publication:
- United States
- Language:
- ENGLISH
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