MAGNETIC ANISOTROPIES OF ALIGNED CARBON NANOTUBES

被引：122

作者：

CHAUVET, O ^{[1
]}

FORRO, L ^{[1
]}

BACSA, W ^{[1
]}

UGARTE, D ^{[1
]}

DOUDIN, B ^{[1
]}

DEHEER, WA ^{[1
]}

机构：

[1] ECOLE POLYTECH FED LAUSANNE, INST PHYS EXPTL, CH-1015 LAUSANNE, SWITZERLAND

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.52.R6963

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Angle-dependent conduction-electron spin resonance and static magnetic-susceptibility measurements of bulk, aligned, and partially purified carbon nanotube films show anisotropies reflecting the anisotropic character of the tubes. The Pauli susceptibility (above 40 K) of the tubes corresponds to about 10(18) spins/cm(3), consistent with a semimetal. The g factors and their anisotropies are temperature dependent. The intrinsic tube resistivity is approximately an order of magnitude lower than the de resistivity of the films. Qualitative changes below 40 K in the resistivity, the spin susceptibility, the g factors, and their anisotropies give evidence for charge-carrier localization.

引用

页码：R6963 / R6966

页数：4

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