Crystal structure and magnetic properties of the carbon-based ferromagnet prepared by pyrolytic method under high magnetic field

被引：0

作者：

Tokue T. ^{[1
]}

Kamishima K. ^{[1
]}

Miyata D. ^{[1
]}

Sato Y. ^{[1
]}

Kakizaki K. ^{[1
]}

Hiratuka N. ^{[1
]}

Imanaka Y. ^{[2
]}

Takamasu T. ^{[2
]}

机构：

[1] Graduate School of Science and Engineering, Saitama University, Sakura-ku, Saitama 338-8570

[2] Tsukuba Magnet Laboratory, National Institute for Materials Science, Tsukuba 305-0003

来源：

Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy | 2011年 / 58卷 / 03期

关键词：

Diamond structure; Ferromagnetism; Magnetic field;

D O I：

10.2497/jjspm.58.176

中图分类号：

学科分类号：

摘要：

We have prepared the carbon-based ferromagnets by pyrolytic method under high magnetic field and investigated their crystal structure and magnetic properties. The crystal structure was measured by the synchrotron X-ray diffraction experiment. The diffraction peak of a diamond was observed for the ferromagnetic samples. Thus, the carbon-based ferromagnet can be attributed to the ferromagnetic ordering of radical spins generated by defects in the diamond structure. And, the diffraction peak of a diamond of the ferromagnetic samples increased with the applied magnetic field in sample preparation. Therefore, the magnetic field may help to form a three dimensional ferromagnetic structure in the carbon-based ferromagnet. The highest magnetization was 3.0 emu/g at 300 K for the sample prepared under magnetic field at 6 T.

引用

页码：176 / 180

页数：4

共 9 条

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