TY - JOUR
T1 - Terahertz conductivity peak in composite materials containing carbon nanotubes
T2 - Theory and interpretation of experiment
AU - Slepyan, G. Ya
AU - Shuba, M. V.
AU - Maksimenko, S. A.
AU - Thomsen, C.
AU - Lakhtakia, A.
PY - 2010/5/17
Y1 - 2010/5/17
N2 - A model for the effective conductivity of a dilute and disordered composite material containing randomly single-wall carbon nanotube (SWCNT) inclusions was formulated. The modification of electron transport by the surface curvature of SWCNTs and an axial depolarization effect due to the finite length of metallic SWCNTs are taken into account. Simultaneous consideration of both effects permits the correct interpretation of the dependences of the effective conductivity on the frequency and temperature, and explains an experimentally observed terahertz peak in the spectrum of the effective conductivity.
AB - A model for the effective conductivity of a dilute and disordered composite material containing randomly single-wall carbon nanotube (SWCNT) inclusions was formulated. The modification of electron transport by the surface curvature of SWCNTs and an axial depolarization effect due to the finite length of metallic SWCNTs are taken into account. Simultaneous consideration of both effects permits the correct interpretation of the dependences of the effective conductivity on the frequency and temperature, and explains an experimentally observed terahertz peak in the spectrum of the effective conductivity.
UR - http://www.scopus.com/inward/record.url?scp=77955748987&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.81.205423
DO - 10.1103/PhysRevB.81.205423
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AN - SCOPUS:77955748987
SN - 1098-0121
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 20
M1 - 205423
ER -