Glycothermal synthesis and magnetic properties of YIG/YAG nanoparticles

被引：1

作者：

Noda, Kunihiro ^{[1
]}

Asakura, Ryo ^{[1
]}

Isobe, Tetsuhiko ^{[1
]}

Morita, Masahito ^{[2
]}

Kurokawa, Kiyoshi ^{[2
]}

Inubushi, Toshiro ^{[2
]}

Takagi, Tomohiro ^{[3
]}

Ohkubo, Michio ^{[3
]}

机构：

[1] Keio Univ, Dept Appl Chem, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan

[2] Shiga Univ Med Sci, Otsu, Shiga 5202192, Japan

[3] Furukawa Elect Corp Ltd, Nishi Ku, Yokohama, Kanagawa 2200073, Japan

来源：

ADVANCES IN NANOMATERIALS AND PROCESSING, PTS 1 AND 2 | 2007年 / 124-126卷

关键词：

YIG; YAG; nanoparticle; magnetic properties; MRI;

D O I：

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

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 300 degrees C 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 300 degrees C 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.

引用

页码：863 / +

页数：2

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