Electrical resistance and magnetoresistance of pyrocarbon at low temperatures in fields up to 14 Tesla

被引：15

作者：

Faisst, A ^{[1
]}

von Löhneysen, H ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Phys, D-76128 Karlsruhe, Germany

来源：

CARBON | 2002年 / 40卷 / 03期

关键词：

pyrolytic carbon; chemical vapour deposition; electrical properties;

D O I：

10.1016/S0008-6223(01)00102-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrical resistivity measurements in an applied magnetic field B up to 14 T were performed at low temperatures T on several samples of pyrolytic carbon deposited on a substrate of pyrolytic boron nitride. The films were produced in a CVD reactor at 1100degreesC from a methane/argon gas flow. For B, a maximum is observed in the electrical resistance at low temperatures Tapproximate to10 K which has been previously found for carbon fibers. The magnetoresistance in this T region can be separated into an isotropic positive part and an anisotropic negative contribution. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：321 / 327

页数：7

共 23 条

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