Pressure dependence of the Fermi surface of Th
Journal Article
·
· Phys. Rev., B; (United States)
We report measurements of the pressure dependence of all three sheets of the Fermi surface of thorium. All of the cross-sectional areas investigated are found to decrease as the interatomic distance is diminished. This behavior is completely unprecedented for a cubic material and indicates that Th becomes less metallic with decreasing lattice spacing. We compare these results with calculations in which the unoccupied 5f electron bands are treated as itinerant and with a localized model (5f states removed). While the itinerant model gives better normal-volume results as pointed out by Koelling and Freeman, the pressure results are only semiqualitatively reproduced by either model.
- Research Organization:
- Sandia Laboratories, Albuquerque, New Mexico 87115
- OSTI ID:
- 5244506
- Journal Information:
- Phys. Rev., B; (United States), Journal Name: Phys. Rev., B; (United States) Vol. 16:10; ISSN PLRBA
- Country of Publication:
- United States
- Language:
- English
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