Nano-crystalline hexaferrite BaFe₁₂O_(19) (BaM) thin films have been prepared by the sol-gel method. A solution of Ba-nitrate and Fe-nitrates was dissolved in solvent with the stoichiometric ratio Ba/Fe=1/10. Films were spin-coated onto SiO₂/Si ...
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https://www.riss.kr/link?id=A76076464
2001
English
530
SCIE,SCOPUS,KCI등재
학술저널
23-26(4쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Nano-crystalline hexaferrite BaFe₁₂O_(19) (BaM) thin films have been prepared by the sol-gel method. A solution of Ba-nitrate and Fe-nitrates was dissolved in solvent with the stoichiometric ratio Ba/Fe=1/10. Films were spin-coated onto SiO₂/Si ...
Nano-crystalline hexaferrite BaFe₁₂O_(19) (BaM) thin films have been prepared by the sol-gel method. A solution of Ba-nitrate and Fe-nitrates was dissolved in solvent with the stoichiometric ratio Ba/Fe=1/10. Films were spin-coated onto SiO₂/Si substrates, dried and then heated in air at various temperatures. In films prepared at a drying temperature Td=250 ℃ and a crystallizing temperature 650 ℃, single-phase BaM was obtained. High coercivities were obtained in these nano-crystalline thin films, 4~5.5 kOe for hexaferrite. Polycrystalline BaM/SiO₂/Si(100) thin films were characterized by Rutherford backscattering (RBS), thermogravimetry (TGA), differential thermal analysis (DTA), x-ray diffraction (XRD), and vibrating sample magnetometry (VSM), as well as Fourier transform infrared spectroscopy (FTIR). The perpendicular coercivity H_(c⊥) and in-plane coercivity H_(CII) after annealing at 650 ℃ for 2 hours were 4766 Oe and 4480 Oe, respectively, at room temperature, under a maximum applied field of 10 kOe.
목차 (Table of Contents)
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Magnetic Properties and Magnetoimpedance Effect in Mumetal Thin Films
Manufacture of Permalloy Soft Magnets by Powder Injection Molding