Free Access
Microsc. Microanal. Microstruct.
Volume 2, Number 2-3, April / June 1991
Page(s) 183 - 190
Microsc. Microanal. Microstruct. 2, 183-190 (1991)
DOI: 10.1051/mmm:0199100202-3018300

Iron L2,3 white line ratio in nm-sized γ-iron crystallites embedded in MgO

Hiroki Kurata1 et Nobuo Tanaka2

1  Institute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611, Japan
2  Department of Applied Physics, School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-01, Japan

Electron energy loss spectroscopy has been performed on nanometer-sized α- and γ-iron crystallites embedded in single-crystal MgO films prepared by vacuum-codeposition of iron and MgO. The Fe L3/L2 white line ratio of γ-ion crystallites was found to be slightly larger than the white line ratio of α-iron This suggests that nm-sized γ-iron crystallites embedded in single-crystal MgO are in a high-spin state similar to α-iron, and is consistent with previous magnetization measurements of γ-iron/MgO composite films

0781 - Electron and ion spectrometers.
8280 - Chemical analysis and related physical methods of analysis.
7590 - Other topics in magnetic properties and materials.

Key words
EEL spectroscopy -- Nanocomposites -- Alpha phase -- Gamma phase -- Iron -- Single crystal -- Magnesium oxide -- Vacuum coating -- Magnetization -- Resonance line -- Diffraction pattern -- Magnetic moments -- Transmission electron microscopy -- High resolution

© EDP Sciences 1991