Temperature-dependent electronic excitations in a 2D graphite layer

J. H. Ho, C. W. Chiu, C. L. Lu, M. F. Lin

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

The low-frequency electronic excitations of a 2D graphite layer is studied within random-phase approximation. Temperature could induce free carriers and thus significantly changes low-energy excitation properties. There exist intraband and interband single-particle excitations (SPE) and collective excitations. Both intraband SPE and plasmon are purely caused by temperature. Electronic excitations strongly depend on temperature and momentum. The Fermi-momentum state only decay through the intraband e-h excitations. The decay rate of such state quickly grows as temperature increases. A single graphite layer quite differs from a 2D electron gas in electronic excitations and de-excitations.

原文English
頁(從 - 到)573-576
頁數4
期刊Physica E: Low-Dimensional Systems and Nanostructures
32
發行號1-2 SPEC. ISS.
DOIs
出版狀態Published - 2006 5月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 原子與分子物理與光學
  • 凝聚態物理學

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