Glycothermal Synthesis and Magnetic Properties of YIG/YAG Nanoparticles

Kunihiro Noda; Ryo Asakura; Tetsuhiko Isobe; Masahito Morita; Kiyoshi Kurokawa; Toshiro Inubushi; Tomohiro Takagi; Michio Ohkubo

doi:10.4028/www.scientific.net/SSP.124-126.863

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Glycothermal Synthesis and Magnetic Properties of...

Glycothermal Synthesis and Magnetic Properties of YIG/YAG Nanoparticles

Abstract:

Yttrium aluminum garnet (YAG) nanoparticles of 14.5±3.2 nm in diameter are synthesized from yttrium acetate and aluminum isopropoxide in 1,4-butanediol by autoclave treatment at 300oC for 2h. Yttrium iron garnet (YIG) / YAG composite nanoparticles of 21.1±4.9 nm in diameter are synthesized from yttrium acetate and iron(III) acetylacetonate in 1,4-butanediol by autoclave treatment at 300oC for 2h using YAG nanoparticles as the seed. In contrast, YIG is not formed by the same procedure in the absence of the YAG seed. The saturation magnetizations of nanoparticles with different YIG/YAG ratios range from 11.9 to 17.8 emu/g. YIG/YAG nanoparticles dispersed in the agarose gel are observed by magnetic resonance imaging (MRI). The degree of the negative MRI contrast depends on the concentration of YIG/YAG nanoparticles.

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Solid State Phenomena (Volumes 124-126)

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863-866

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.863

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Online since:

June 2007

Authors:

Kunihiro Noda, Ryo Asakura, Tetsuhiko Isobe, Masahito Morita, Kiyoshi Kurokawa, Toshiro Inubushi, Tomohiro Takagi, Michio Ohkubo

Keywords:

Magnetic Property, MRI, Nanoparticle, YAG, Yttrium Iron Garnet (YIG) Sphere

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References

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