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Effect of annealing on the magnetic anisotropy and hysteretic properties of film structures containing Tb-Co amorphous layers

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Abstract

The effect of heat treatment on the magnetic properties of Tb-Co amorphous films and film structures based on them has been studied. Regularities of variations of the coercive force and induced magnetic anisotropy constants of Tb-Co amorphous films and the coercive force and unidirectional anisotropy field of the permalloy layer in Fe19Ni81/Tb-Co films were determined as functions of the annealing temperature. The regularities found have been interpreted by assuming temperature-induced changes in the shortrange atomic order in the amorphous structure and interlayer diffusion in two-layer films.

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References

  1. P. P. Freitas, J. L. Leal, T. S. Plaskett, L. V. Meloa, and J. C. Soares, “Spin-Valve Structures Exchange Biased with a-Tb0.23Co0.77 Layers,” J. Appl. Phys. 75, 6480–6482 (1994).

    Article  CAS  Google Scholar 

  2. H. Boeve, H. A. M. Berg, R. Mattheis, W. Michalke, G. Rupp, and J. Wecker, “Enhanced Uniaxial Anisotropy in an Artificial Antiferromagnet Using Thin TbCo Seed Layers,” J. Magn. Magn. Mater. 240, 392–394 (2002).

    Article  CAS  Google Scholar 

  3. G. I. Frolov and V. S. Zhigalov, Physical Properties and Use of Magnetofilm Nanocomposites (Sibir. Otd. Ross. Akad. Naik, Novosibirsk, 2006) [in Russian].

    Google Scholar 

  4. A. V. Svalov, P. A. Savin, G. V. Kurlyandskaya, I. Gutierres, and V. O. Vas’kovskiy, “Spin-Valve Magnetoresistive Structures Based on Co/Tb Multilayer Films,” Tech. Phys. 47, 987–991 (2002)

    Article  CAS  Google Scholar 

  5. V. O. Vas’kovskii, K. G. Balymov, A. A. Yuvchenko, A. V. Svalov, A. N. Sorokin, and N. A. Kulesh, “Magnetoresistive Fe19Ni81/Tb-Co Medium with an Internal Magnetic Bias,” Tech. Phys. 56, 981–985 (2011).

    Article  Google Scholar 

  6. K. G. Balymov, V. O. Vas’kovskiy, A. V. Svalov, E. A. Stepanova, and N. A. Kulesh, “Magnetization Reversal of Tb-Co/Fe19Ni81 Films with a Unidirectional Anisotropy,” Phys. Met. Metallogr. 110, 526–530 (2010).

    Article  Google Scholar 

  7. W. C. Cain, W. H. Meiklejohn, and M. H. Kryder, “Effects of Temperature on Exchange Coupled Alloys of Ni80Fe20-FeMn, Ni80Fe20-α-Fe2O3 and Ni80Fe20-Tb-Co,” J. Appl. Phys. 61, 4170–4172 (1987).

    Article  CAS  Google Scholar 

  8. M. L. Soltani, “Structural, Compositional and Annealing Effects on Magnetic Properties in R 1 − x Cox (R = Er, Tb, Sm) Amorphous Thin Film Alloys,” J. Non-Cryst. Solids 353, 2074–2078 (2007).

    Article  CAS  Google Scholar 

  9. Y. Suzuki, “Effect of Additional Elements on the Thermal Relaxation of Magnetic Anisotropy in Amorphous TbCo Films,” J. Appl. Phys. 73, 4507–4511 (1993).

    Article  Google Scholar 

  10. S. Shiomi, T. Ikeda, M. Koshiro, and M. Masuda, “Effect of Substrate Bias on In-Plane Uniaxial Anisotropy in Amorphous TbCo Films Prepared by DC-Sputtering,” Jpn. J. Appl. Phys. 30, L364–L366 (1991).

    Article  Google Scholar 

  11. J. Betz, K. Mackay, and D. Givord, “Magnetic and Magnetostrictive Properties of Amorphous Tb1 − x Cox Thin Films,” J. Magn. Magn. Mater. 207, 180–187 (1999).

    Article  CAS  Google Scholar 

  12. A. G. Lesnik, Induced Magnetic Anisotropy (Naukova Dumka, Kiev, 1975) [in Russian].

    Google Scholar 

  13. V. O. Vas’kovskiy, K. G. Balymov, A. V. Svalov, N. A. Kulesh, E. A. Stepanova, and A. N. Sorokin, “Magnetic Anisotropy of Tb-Co Amorphous Films,” Phys. Solid State 53, 2275–2283 (2011).

    Article  Google Scholar 

  14. A. S. Andreenko and S. A. Nikitin, “Magnetic Properties of Amorphous Rare-Earth—3d-Transition-Metal Alloys” Phys. Usp. 40, 581–597 (1997).

    Article  Google Scholar 

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Original Russian Text © V.O. Vas’kovskiy, A.V. Svalov, K.G. Balymov, N.A. Kulesh, 2012, published in Fizika Metallov i Metallovedenie, 2012, Vol. 113, No. 9, pp. 908–912.

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Vas’kovskiy, V.O., Svalov, A.V., Balymov, K.G. et al. Effect of annealing on the magnetic anisotropy and hysteretic properties of film structures containing Tb-Co amorphous layers. Phys. Metals Metallogr. 113, 862–866 (2012). https://doi.org/10.1134/S0031918X1209013X

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  • DOI: https://doi.org/10.1134/S0031918X1209013X

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