Ferromagnetic- and superconducting-like behavior of graphite

被引：261

作者：

Kopelevich, Y

Esquinazi, P

Torres, JHS

Moehlecke, S

机构：

[1] Univ Leipzig, Inst Expt Phys 2, Dept Superconduct & Magnetism, D-04103 Leipzig, Germany

[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2000年 / 119卷 / 5-6期

关键词：

D O I：

10.1023/A:1004637814008

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have identified ferromagnetic- and superconducting-like magnetization hysteresis loops in highly oriented pyrolytic graphite samples below and above room temperature. We also found that both behaviors are very sensitive to low-temperature. We also found that both behaviors are very sensitive to low-temperature as compared to the sample synthesis temperature heat treatment. The possible contribution of magnetic impurities and why these do not appear to be the reason for the observed phenomena is discussed.

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页码：691 / 702

页数：12

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