Solid state synthesis and characterization of Fe-ZrO2 ferromagnetic nanocomposite thin films

被引：0

作者：

Myagkov, V.G. ^{[1
]}

Bykova, L.E. ^{[1
]}

Bayukov, O.A. ^{[1
]}

Zhigalov, V.S. ^{[1
]}

Tambasov, I.A. ^{[1
]}

Zharkov, S.M. ^{[1
,2
]}

Matsynin, A.A. ^{[1
,2
]}

Bondarenko, G.N. ^{[3
]}

机构：

[1] Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk,660036, Russia

[2] Siberian Federal University, Krasnoyarsk,660041, Russia

[3] Institute of Chemistry and Chemical Technology, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk,660049, Russia

来源：

Journal of Alloys and Compounds | 2015年 / 636卷

关键词：

Fe-ZrO2 ferromagnetic nanocomposite thin films are successfully synthesized using a thermite reaction between the Zr and Fe2O3 layers. The initial Zr/Fe2O3 bilayers were obtained by the deposition of Zr layers on α-Fe2O3 films at room temperature. The mixing at the Zr/Fe2O3 interface and synthesis of α-Fe and the amorphous ZrO2 phases start at a temperature above the initiation temperature Tin ∼ 250 °C. Together with the formation of α-Fe; partial transformation from Fe2O3 to Fe3O4 occurs after annealing at 300 °C. The secondary reaction between Fe3O4 and Zr starts soon after the Fe2O3 is converted to the Fe3O4 phase. The crystallization of amorphous ZrO2 and the formation of the ZrO2 cubic/tetragonal phase occurs above 400 °C. After annealing at 500 °C the reaction products contain (1 1 0) textured α-Fe nanocrystals with a diameter of about 34 nm embedded in an insulating c-ZrO2 (or t-ZrO2) matrix. The synthesized Fe-ZrO2 nanocomposite films possess soft magnetic behavior; high magnetization and good chemical stability. © 2015 Elsevier B.V;

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页码：223 / 228

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