Raman and infrared studies of the metal-insulator transition in BaCo1-xNixS2

S. Sugai, N. Yamane, S. Kashima, K. Takenaka, H. Sasaki, M. Sato, S. Shamoto

研究成果: Conference article同行評審

1 引文 斯高帕斯(Scopus)

摘要

The electronic states near the insulator-metal transition of stoichiometric BaCo1-xNixS2 were investigated utilizing the different selection rule for Raman scattering from reflection spectroscopy. The electronic Raman component at low energies is large even in the insulating phase at x = 0. The spectral intensity is preserved from 300 to 20 K in the insulating phase (x≤0.18), whereas in the metallic phase (x≥0.24), the B1g and B2g spectra increase, as temperature decreases. It suggests that the change is induced by the itinerant electronic states through the mass-enhanced-type insulator-metal transition.

原文English
頁(從 - 到)627-628
頁數2
期刊Physica B: Condensed Matter
281-282
DOIs
出版狀態Published - 2000 六月 1
事件Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
持續時間: 1999 八月 241999 八月 28

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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