Terahertz conductivity peak in composite materials containing carbon nanotubes: Theory and interpretation of experiment

被引：117

作者：

Slepyan, G. Ya. ^{[1
]}

Shuba, M. V. ^{[1
]}

Maksimenko, S. A. ^{[1
]}

Thomsen, C. ^{[2
]}

Lakhtakia, A. ^{[3
,4
]}

机构：

[1] Belarusian State Univ, Inst Nucl Problems, Minsk 220050, BELARUS

[2] Tech Univ Berlin, Inst Festkorperphus, D-10623 Berlin, Germany

[3] Penn State Univ, Nanoengineered Metamat Grp, Dept Engn Sci & Mech, University Pk, PA 16802 USA

[4] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 20期

关键词：

ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; NEAR-FIELD; ELECTRODYNAMICS; MICROWAVE; ANTENNA;

D O I：

10.1103/PhysRevB.81.205423

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：6

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