Low temperature magnetization of MnxFe1-xO-Fe2o3 ferrofluids

H. E. Horng, I. J. Jang, K. L. Kung, Y. D. Yao, H. C. Yang, Chin Yih Hong

研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

Magnetization of freezing MnxFe1-xO-Fe2o3 (x=0,0.1.1) ferrofluids was investigated systematically. Kerosenebased ferrofluids were produced by co-precipitation method and we found that the average particle size increases from 118 Å to 178 Å with increasing of Mn concentration. It is also found that the blocking temperature TB increasing as Mn concentration decreasing. It shows that the increase of the Mn concentration resulted in increasing of the particles size would dismiss the blocking and hence decrease the relaxation time. The magnetic measurement shows the Curie law of superparamagnetic particles in the liquid region while it reveals the Curie-Weiss law in the unblocked solid region.

原文英語
頁(從 - 到)2023-2024
頁數2
期刊Czechoslovak Journal of Physics
46
發行號SUPPL. 4
DOIs
出版狀態已發佈 - 1996
對外發佈

ASJC Scopus subject areas

  • 物理與天文學 (全部)

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