We have measured the room temperature reflectivity of ZrTe3, for energies between 0.03 eV and 3.5 eV, with polarizations in the high-conductivity a and b directions. The spectra confirm the semimetallic behavior; a possible gap at 0.435 eV is identified, suggesting that the valence-conduction band overlap is < 0.1 eV. The exptrapolated zero-frequency conductivity is roughly consistent with the d.c. results . The optical scattering times are τa = 2 × 10-15 s and τb = 8 × 10-15 s, and the effective masses are mae ∼ 0.2m0, mbe ∼ 0.3m0, mah ∼ 0.1m0 and mbh ≫ m0.
|Number of pages||8|
|State||Published - Dec 1986|
Bibliographical noteFunding Information:
and training on this equipment. This research was supported in part by the National Science Foundation, under Grant No. DMR-8318189.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry