The Néel Theory of Ferrimagnetism
作者:
J. Samuel Smart,
期刊:
American Journal of Physics
(AIP Available online 1955)
卷期:
Volume 23,
issue 6
页码: 356-370
ISSN:0002-9505
年代: 1955
DOI:10.1119/1.1934006
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
The Néel theory of ferrimagnetism is a molecular-field theory of magnetic ordering in systems which contain nonequivalent substructures of magnetic ions. The two principal results of the theory are (a) the curve of reciprocal susceptibilityvstemperature above the Curie temperature is an hyperbola, and (b) the curve of spontaneous magnetizationvstemperature below the Curie temperature may have any one of a number of unusual forms. The exact form depends on the distribution of magnetic ions between the substructures and on the relative values of the molecular field coefficients.The agreement between the predictions of the Néel theory and some experimental observations on ferrites is discussed briefly.
点击下载:
PDF
(1104KB)
返 回