Evolution of magnetic behaviour in the graphitization process of glassy carbon

被引：22

作者：

Wang, X ^{[1
]}

Liu, ZX ^{[1
]}

Zhang, YL ^{[1
]}

Li, FY ^{[1
]}

Yu, RC ^{[1
]}

Jin, CQ ^{[1
]}

机构：

[1] Chinese Acad Sci, Ctr Condensed Matter Phys, Inst Phys, Lab Extreme Condit Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2002年 / 14卷 / 43期

关键词：

D O I：

10.1088/0953-8984/14/43/322

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have carried out DC magnetization measurements on spherical glassy carbon exposed to high temperatures and high pressures. The observed magnetic signals clearly depend on the sintering temperature., On the basis. of the graphitization temperature (around 1400 degreesC), the behaviour can be classified into three regions: (1) paramagnetism in the no-graphitization region; (2) ferromagnetism in the near-graphitization region; (3) diamagnetic behaviour after graphitization. The magnetic transitions associated with the process of graphitization are discussed.

引用

页码：10265 / 10272

页数：8

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