Electrical and galvanomagnetic effects in new sodium-doped fullerene composites

被引：7

作者：

Berezkin, V. I. ^{[1
]}

Popov, V. V.

机构：

[1] Russian Acad Sci, St Petersburg Res Ctr Ecol Safety, St Petersburg 197110, Russia

[2] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

PHYSICS OF THE SOLID STATE | 2007年 / 49卷 / 09期

关键词：

D O I：

10.1134/S1063783407090314

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Hall effect, magnetoresistance, the temperature dependence of the electrical resistance, and the current-voltage characteristics of new C-60-based carbon-carbon composites were studied in magnetic fields of up to 28 kOe at temperatures T = 1.8-336 K. Sodium-doped samples were used. It is shown that there is weak localization of charge carriers and strong electron-electron interactions. Superconductivity occurs in the range T <= 15 K. A mixed current may exist at higher temperatures. Cooper pairs are assumed to form due to the interaction of the conduction electrons with the pi-electron system of a C-60 molecule.

引用

页码：1803 / 1810

页数：8

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