Abstract
Using photoemission spectroscopy, the electronic structure around the two-dimensional filling-control metal-insulator transition (MIT) of La1.17-xPbx VS3.17 has been studied. The density of state at the Fermi level disappears in going to the insulating phase, i.e., as x approaches ∼ 0.17 or as the temperature decreases at x = 0.15. The chemical potential shift with carrier doping shows a finite jump between the electron- and hole-doped samples and is unusually suppressed around x = 0.17. The results are contrary to a rigid band picture and show the presence of a pseudogap in the metallic phase.
| Original language | English |
|---|---|
| Pages (from-to) | 263-265 |
| Number of pages | 3 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 226-230 |
| Issue number | PART I |
| DOIs | |
| Publication status | Published - 2001 Jan 1 |
| Externally published | Yes |
Keywords
- Electronic structure
- Phase transitions-metal-insulator
- Photoemission
- Two-dimensional systems
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Cite this
Ino, A., Fujimori, S., Okane, T., Fujimori, A., Mizokawa, T., Yasui, Y., Nishikawa, T., & Sato, M. (2001). Photoemission study of the filling-control metal-insulator transition in the two-dimensional system La1.17-xPbxVS3.17. Journal of Magnetism and Magnetic Materials, 226-230(PART I), 263-265. https://doi.org/10.1016/S0304-8853(00)00701-0