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Simulations of Ferromagnetic Resonance Spectra Excited in Magnetic Bilayers

이층 자성막에서 여기되는 강자성 공명신호의 모의실험

  • 김약연 (한국전자통신연구원 신기능정보소자팀) ;
  • 한기평 (한국전자통신연구원 신기능정보소자팀) ;
  • 유성초 (충북대학교 물리학과)
  • Published : 2003.03.01

Abstract

We have performed the simulation of ferromagnetic resonance spectra on the exchange coupled bilayer thin films at perpendicular configuration. Variables considered in spectrum calculation were the interfacial exchange constants per unit area, the layer thickness, and the surface anisotropy constants. In case of antiferromagnetic coupling, variation of exchange constant gave a great effect to the absorption spectra of the low and the high magnetization layer. Variation of thickness in low magnetization layer did nt nearly influenced the resonated field of the high magnetization layer. Also, the increase of negative surface anisotropy increased the resonance field of the low and the high magnetization layer.

References

  1. J. Magn. Magn. Mater. v.131 Frequencies of ferromagnetic reasonance of ferromagnet - antiferromagnet - ferromagnet(FM/AFM/FM) trilayers G. M. Genkin;M. V. Sapozhnikov;I. D. Tokman https://doi.org/10.1016/0304-8853(94)90282-8
  2. J. Magn. Magn. Mater. v.125 Ferromagnetic resonance of evaporated Fe/Cu/Fe trilayers H. Yamazaki https://doi.org/10.1016/0304-8853(93)90098-M
  3. 전기전자재료학회 논문지 v.9 no.10 [(CoO/NiO)/NiFe/Cu/NiFe] Spin - Valve 박막에서의 자기저항효과와 자기적 특성에 관한 연구 현준원
  4. 전기전자재료학회 논문지 v.10 no.10 NiO/ NiFe/Cu/NiFe 스핀 - 밸브 샌드위치의 자기저항 특성 김재욱
  5. 전기전자재료학회 논문지 v.5 no.1 Al/Tb - Fe - Co 다층박막의 자기적 이방특성 김명한;문정탁;신웅식;임기조
  6. Phys. Rev. Lett. v.61 Giant magnetoresistance of (001)Fe/(001)Cr magnetic superlattices M. N. Baibich;J. M. Broto;A. Fert;F. Nguyen Van Dau;F. Petroff;P. Etienne;G. Creuzet;A. Friegrich;J. Chazelas https://doi.org/10.1103/PhysRevLett.61.2472
  7. Phys. Rev. Lett. v.64 no.15 Obsevation of thickness dependence of magnetic surface anisotropy in ultrathin amorphous films R. J. Hicken;G. T. Rado;Gang Xiao;C. L. Chien https://doi.org/10.1103/PhysRevLett.64.1820
  8. Phys. Rev. B. v.42 Brillouin light-scattering experiments on exchange-coupled ultrathinbilayers of iron separated by epitaxial copper(001) J. F. Cochran;J. Rudd;W. B. Muir;Z. Celinski https://doi.org/10.1103/PhysRevB.42.508
  9. J. Magn. Magn. Mater. v.131 Structural and spin wave reasonance studies of polycrystalline and epitaxial permalloy- chromium layered structures D. S. Schmool;J. S. S. Whiting;A. Chambers;E. A. Wilinska https://doi.org/10.1016/0304-8853(94)90283-6
  10. J. Magn. Magn. Mater. v.82 Spin wave in exchange-coupled epitaxial double layers J. Barnas;P. Grunberg https://doi.org/10.1016/0304-8853(89)90153-4
  11. J. Magn. Magn. Mater v.80 Spin wave resonance study of exchange coupled $Ni_{80}Fe_{20}$ double layers separated by thin interlayers of Cu, Cr and Pd H. Bosse;H. Gartner https://doi.org/10.1016/0304-8853(89)90139-X
  12. J. Magn. Magn. Mater. v.92 Ferromagnetic resonance in a coupled two-layer system A. Layadi;J. O. Artman https://doi.org/10.1016/0304-8853(90)90691-I
  13. Phys. Rev. B. v.34 Ferromagnetic resonance in a system composed of a ferromagnetic substrate and an exchange-coupled thin ferromagnetic overlayer J. F. Cochran;B. Heinrich;A. S. Arrot https://doi.org/10.1103/PhysRevB.34.7788
  14. J. Appl. Phys. v.41 Evidence for an exchange coupling at the interface between two ferromagnetiic films F. Hoffmann;A. Stankoff(ed.);H. Pascard(ed.) https://doi.org/10.1063/1.1658798
  15. Phys. Stat. Sol. v.41 Dynamic pinning induced by nickel layers on permalloy films F. Hoffmann https://doi.org/10.1002/pssb.19700410237