Hall effect and magnetoresistance of carbon nanotube films

被引：88

作者：

Baumgartner, G

Carrard, M

Zuppiroli, L

Bacsa, W

deHeer, WA

Forro, L

机构：

[1] Physics Department, Ecole Polytechnique Fédérale de Lausanne

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.55.6704

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report Hall coefficient (R(H)) and magnetoresistance (Delta rho/rho) measurements on thin films of aligned carbon nanotubes. R(H) is positive in the whole temperature range (1.7-300 K) showing the predominance of hole transport in the electronic conduction. The upper limit of the carrier concentration is 1.6x10(19) cm(-3). The resistance of the thin-film samples is governed mainly by the loose tube-tube contacts and this shows up in the Delta rho/rho<0 at low fields, suggesting a noncoherent transport between the nanotubes.

引用

收藏

页码：6704 / 6707

页数：4

相关论文

共 17 条

[1] Evidence of anisotropic metallic behaviour in the optical properties of carbon nanotubes [J].

Bommeli, F ;

Degiorgi, L ;

Wachter, P ;

Bacsa, WS ;

deHeer, WA ;

Forro, L .

SOLID STATE COMMUNICATIONS, 1996, 99 (07) :513-517

[2] MAGNETIC ANISOTROPIES OF ALIGNED CARBON NANOTUBES [J].

CHAUVET, O ;

FORRO, L ;

BACSA, W ;

UGARTE, D ;

DOUDIN, B ;

DEHEER, WA .

PHYSICAL REVIEW B, 1995, 52 (10) :R6963-R6966

[3] Probing electrical transport in nanomaterials: Conductivity of individual carbon nanotubes [J].

Dai, HJ ;

Wong, EW ;

Lieber, CM .

SCIENCE, 1996, 272 (5261) :523-526

[4] ALIGNED CARBON NANOTUBE FILMS - PRODUCTION AND OPTICAL AND ELECTRONIC-PROPERTIES [J].

DEHEER, WA ;

BACSA, WS ;

CHATELAIN, A ;

GERFIN, T ;

HUMPHREYBAKER, R ;

FORRO, L ;

UGARTE, D .

SCIENCE, 1995, 268 (5212) :845-847

[5] A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE [J].

DEHEER, WA ;

CHATELAIN, A ;

UGARTE, D .

SCIENCE, 1995, 270 (5239) :1179-1180

[6] MAGNETOCONDUCTANCE IN THE VARIABLE-RANGE-HOPPING REGIME DUE TO A QUANTUM-INTERFERENCE MECHANISM [J].

FARAN, O ;

OVADYAHU, Z .

PHYSICAL REVIEW B, 1988, 38 (08) :5457-5465

[7]

FORRO L, 1995, P 6 INT C HOPPING RE, P392

[8] SPIN AND QUANTUM INTERFERENCE EFFECTS IN HOPPING CONDUCTIVITY [J].

FRYDMAN, A ;

OVADYAHU, Z .

SOLID STATE COMMUNICATIONS, 1995, 94 (09) :745-749

[9]

IJIMA S, 1991, NATURE, V354, P56

[10] Electrical resistance of a single carbon nanotube [J].

Kasumov, AY ;

Khodos, II ;

Ajayan, PM ;

Colliex, C .

EUROPHYSICS LETTERS, 1996, 34 (06) :429-434