Abstract
We grew a high-quality single crystal of UC and carried out the de Haas-van Alphen(dHvA) experiments. The Fermi surfaces of a semimetal UC were confirmed to consist of three ellipsoidal hole-Fermi surfaces centered at the X points and six cushion-like electron-Fermi surfaces centered at the W points in the fcc Brillouin zone. These Fermi surface properties are based on the combined results of dHvA experiments and SRAPW-energy band calculations. The hole and electron Fermi surfaces mainly originate from the C 2p valence band and the U 5f conduction band, respectively. The cyclotron mass of the hole is light, being a rest mass of an electron m0, while the mass of the electron is heavy, being in the range from 4.0 to 15 m0. The mass enhancement is large for the electron Fermi surface, originated from the U 5f character.
Original language | English |
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Pages (from-to) | 3953-3959 |
Number of pages | 7 |
Journal | journal of the physical society of japan |
Volume | 68 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 1999 |
Externally published | Yes |
Keywords
- Energy band structure
- Fermi surface
- UC
- dHvA
ASJC Scopus subject areas
- Physics and Astronomy(all)