Preparation of Barium Ferrite Thin Film by Sol-Gel Method

졸겔법을 이용한 바륨페라이트 박막 제조

  • 변태봉 (포항산업과학연구원) ;
  • 조원덕 (부산대학교 무기재료공학과) ;
  • 김태옥 (부산대학교 무기재료공학과)
  • Published : 1997.01.01

Abstract

Barium ferrite thin films on the thermal oxidized Si substrate were prepared by using sol-gel method (dip coating) from the sol of composition ratio of 5.25, designated by mole ratio 2Fe/Ba. The gelation process was largely divided into 4 step, and the sol prepared by reaction for 90 minutes at 8$0^{\circ}C$ was the suit-able for coating. Needle shaped particles formed on the coating layer were placed parallel to substrate and the inclination was increased with film thickness. The easy-direction of magnetization of needle shaped par-ticles was long-axis direction.

Keywords

Sol-gel dip coating;Barium ferrite

References

  1. J. Cryst. Growth v.16 Liquid Phase Epitaxial Growth of Magnetic Garnet Films by Isothermal Dipping in a Horizontal Plane with Axial Rotation E.A. Giess;J.D. Kuptsis;E.A.D. White
  2. IEEE Trans. Magn. v.MAG-23 Ferrite Plating on GaAs for Microwave Monilithic Intergrated Circuit M.Abe;T.Itoh;Y.Tamaura;Y.Gotoh;M.Gomi
  3. J. Mater. Sci. v.26 Characterization of Iron Oxide Thin Film Prepared by the Sol-Gel Method N.Takahashi;N.Kakuda;A.Ueno;K.Yamaguchi;T.Fujii;T.Mizushimn;Y.Udagawa
  4. J. Appl. Phys. v.75 no.10 Ba-ferrite Thin Film Media for High-density Longitudinal Recording T.L. Hylton;M.A. Parker;M. Ullah;K.R. Coffey;R. Unphress;J.K. Howard
  5. J. Mater. Sci. Letter v.12 Preparation of γ-Fe₂O₃Containing Silica Glasses by the Sol-Gel Process M. Nogami;Asuha
  6. J Non-Crystalline Solids v.48 History and Principles of the Sol-Gel Process, and Some New Multicomponent Oxide Coatings H. Dislich;P. Hinz
  7. IEEE Trans. Magn. v.MAG-21 Barium Ferrite Media for Perpendicular Recording T. Fujiwara
  8. IEEE Trans. Magn. v.MAG-20 FMR Linewidth of Barium Hexaferrite at Millimeter Wavelengths M. Labeyrie;J.C. Mage;W. Somoner;J.M. Desvignes;H.Le Gall
  9. J. Mater. Sci. Lett. v.9 Preparation of Barium Hexagonal Ferrites by Sol-Gel Method P. Brahma;D. Chakravorty;K. Singh;D. Bahadur
  10. Technical Report of IEICE v.MR95-28 K.Tanahashi;A. Ishikawa;K. Yamanaka;M. Futamoto
  11. J. Electron. Mat. v.3 Epitaxial Garnet Films by Organometallic Chemical Vapor Deposition M.E. Cowher;T.O. Sedgwick;J. Landermann
  12. IEEE Trans. Magn. v.MAG-5 Magnetic Oxide Films J.E.Mee;G.R.Pulliam;J.L.Archer;P.J.Besser
  13. Sol-Gel Science:The Physics and Chemistry of Sol-Gel Processing C J. Brinker;G.W. Scherer
  14. J. Mag. Soci. Japan. v.12 Preparation of Magnetic Oxide Thin Films by Sol-Gel Synthesis K. Yamaguchi;A. Kaneko;S. Kuronouchi;A. Ueno;T. Fujii
  15. J. Mater. Sci. Lett. v.8 Preparation of Fe₃O₄Thin Film by the Sol-Gel Method and Its Magnetic Properties K.Tanaka;T.Yoko;M.Atarashi;K.Kamiya
  16. J. Amer .Ceram. Soc. v.73 no.2 Processing and Characterization of Hexagonal Ferrites Thin Films from Organometallic Compounds D.F. Ryder;J.H. Fenstermacher
  17. Appl. Phys. Lett. v.19 Growth of High-quality Garnet Thin Films from Supercooled Melts H.J. Levinstein;S. Licht;R.W. Landorf;S.L. Blank
  18. Proc. IEEE v.76 no.2 Ferrite Films for Microwave and Millimeter-wave Devices H.L.Glass
  19. J. Cryst. Growth v.17 The Growth of Magnetic Garnets by Liquid Phase Epitaxy S.L. Blank;J.W. Nielsin
  20. J. Appl. Phys. v.75 no.10 Microstructural Investigation of Barium Ferrite Longitudinal Thin-Film Media B.Y. Wong;X. Sui;D.E. Laughlin;M.H. Kryder
  21. IEEE Trans Magn. v.MAG-29 Microstructural Origin of the Perpendicular Anisotropy in M-type Barium Hexaferrite Thin Films Deposited by RF Magnetron Sputtering X. Sui;M.H. Kryder;B.Y. Wong;D.E. Laughlin
  22. J. Appl. Phys. v.61 High Speed Deposition of High-quality Ferrite Films from Aqueous Solution at Low Temperature(≤90℃) M. Abe;Y. Tamaura;Y. Gotoh;N. Kitamura;M. Gomi
  23. Japanese J. App. Phys. v.28 no.2 Characterization of Maghemite Thin Films Prepared by Spin Coating a Gel Solution N. Takahashi;N. Kakuda;A. Ueno;K. Yamaguchi;T. Fujii