Sol-gel synthesis and characterization of polycrystalline GdFeO3 and Gd3Fe5O12 thin films

被引：31

作者：

Soderlind, Fredrik ^{[1
]}

Selegard, Linnea ^{[1
]}

Nordblad, Per ^{[2
]}

Uvdal, Kajsa ^{[1
]}

Kall, Per-Olov ^{[1
]}

机构：

[1] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden

[2] Uppsala Univ, Dept Engn Sci, SE-75121 Uppsala, Sweden

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2009年 / 49卷 / 02期

关键词：

Thin film; Gadolinium iron oxides; Sol-gel synthesis; Magnetic properties; XPS; MAGNETIQUES DES FERRITES; RARE-EARTH ORTHOFERRITES; IRON GARNETS; GADOLINIUM; PRECURSOR; ALUMINUM; GALLIUM; OXIDES; RAMAN; GD;

D O I：

10.1007/s10971-008-1859-0

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thin films of the perovskite and garnet structured gadolinium ferrites GdFeO3 and Gd3Fe5O12 have been synthesized by a sol-gel method, based on stoichiometric mixtures of acetyl acetone chelated Gd3+ and Fe3+ dissolved in 2-methoxy ethanol. After spin coating onto Si wafers, and heating in air at 700 degrees C for 20 h, neatly grown essentially single phase films were obtained. From X-ray photoelectron spectroscopy an iron deficiency is observed in the uppermost layer of both films, implying that the crystallites preferably end in planes rich in Gd and O but not in Fe. The films were also characterized by X-ray powder diffraction, scanning electron microscopy, infrared spectroscopy, and magnetic measurements.

引用

页码：253 / 259

页数：7

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