Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Magnetic Behavior of Yttrium-Iron-Garnet Nanoparticles Dispersed in Glass Composites

Published

Author(s)

S Taketomi, Robert D. Shull

Abstract

By absorbing amorphous yttrium iron garnet (YIG) nanoparticles into nanosized pores of a controlled pore glass (CPG) followed by heat treatment, we synthesized YIG nanocrystal-dispersed glass composites. In a sample which was prepared with CPG of 300 nm pore size and heat-treated at 800 degrees C for 2 hours, almost all the amorphous YIG nanoparticles transformed to YIG nanocrystals. The amount of YIG was estimated to be 4.74 weight % from the measured saturation magnetization. In a sample which was prepared from CPG of 49nm pore size with the same heat-treatment, the amount of YIG was estimated to be only 0.538 weight %. Mangetization measurements of differently heat-treated samples revealed that the HIG particles reacted with the SiO2 of the CPG and decomposed into paramagnetic materials. However, the presence of a small amount of unreacted YIG in those samples is implied by their large initial magnetic susceptibilities.
Citation
Journal of Applied Physics
Volume
91 No. 10
Issue
Part 3

Keywords

controlled poreglass (CPG), x-ray diffraction, yttrium iron garnet (YIG)

Citation

Taketomi, S. and Shull, R. (2002), Magnetic Behavior of Yttrium-Iron-Garnet Nanoparticles Dispersed in Glass Composites, Journal of Applied Physics (Accessed November 8, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created May 14, 2002, Updated October 12, 2021