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2008 | 113 | 3 | 875-878
Article title

Investigation of Quantum Effects in Carbonaceous Materials Near the Metal-Insulator Transition by Means of THz Photoconductivity

Content
Title variants
Languages of publication
EN
Abstracts
EN
A series of carbonaceous fibers with conductivity tuned to the metal-insulator transition were prepared by heat treatment of chemically modified polymer precursors. Peculiar behaviour of the resistivity versus temperature dependence R(T) at low temperatures suggests quantum corrections to the Drude conductivity due to weak localization and electron-electron interaction dominating in the conductivity. The THz conductivity method is employed to study the modification of the density of states and provides evidence for a strong change in density of states at the Fermi level caused by the quantum effects.
Keywords
EN
Publisher

Year
Volume
113
Issue
3
Pages
875-878
Physical description
Dates
published
2008-03
received
2007-08-26
Contributors
author
  • Belarussian State University, Nezaliezhnasti av.4, 220030 Minsk, Belarus
author
  • Belarussian State University, Nezaliezhnasti av.4, 220030 Minsk, Belarus
author
  • Semiconductor Physics Institute, A. Goštauto 11, LT- 01108 Vilnius, Lithuania
author
  • Semiconductor Physics Institute, A. Goštauto 11, LT- 01108 Vilnius, Lithuania
author
  • Semiconductor Physics Institute, A. Goštauto 11, LT- 01108 Vilnius, Lithuania
References
  • 1. I. Bashmakov, V. Dorosinets, M. Lukashevich, A. Mazanik, T. Tihonova, T. Zabel, B. Wiedenhorst, H. Micklitz, J. Mater. Res. 16, 2832 (2001)
  • 2. P.A. Lee, T.V. Ramakrishnan, Rev. Mod. Phys. 57, 287 (1985)
  • 3. G. Du, V.N. Prigodin, A. Burns, J. Joo, C.S. Wang, A.J. Epstein, Phys. Rev. B 58, 4485 (1998)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n320kz
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