EFFECT OF OXIDE LAYER ON THE HYSTERESIS BEHAVIOR OF FINE FE PARTICLES

被引：83

作者：

GANGOPADHYAY, S

HADJIPANAYIS, GC

SHAH, SI

SORENSEN, CM

KLABUNDE, KJ

PAPAEFTHYMIOU, V

KOSTIKAS, A

机构：

[1] DUPONT CO,WILMINGTON,DE 19808

[2] KANSAS STATE UNIV AGR & APPL SCI,DEPT PHYS,MANHATTAN,KS 66506

[3] KANSAS STATE UNIV AGR & APPL SCI,DEPT CHEM,MANHATTAN,KS 66506

[4] UNIV IOANNINA,GR-45332 IOANNINA,GREECE

[5] NCSR DEMOKRITOS,INST MAT SCI,ATHENS,GREECE

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 70卷 / 10期

关键词：

D O I：

10.1063/1.350096

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of surface oxidation on the structural and magnetic properties of fine Fe particles prepared by the evaporation technique have been studied using transmission electron microscopy, x-ray photoelectron spectroscopy, superconducting quantum interference device magnetometry, and Mossbauer spectroscopy. By varying the argon pressure, particles were obtained with sizes in the range of 60-350 angstrom. The hysteresis behavior was found to be strongly dependent on the variation in the amount of surface oxidation. The differences in the magnetic behavior due to variation in size and oxidation have been explained by considering a shell/core model for the particle morphology with the shell consisting of Fe oxides surrounding the alpha-Fe core.

引用

页码：5888 / 5890

页数：3

共 9 条

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