Strong Influence of Tb Concentration on Domain Structure and Kerr Effect of TbxFe 1-x Thin Films


Amorphous TbFe films with perpendicular magnetic anisotropy are attracting wide attention as promising candidates for erasable high - density magneto - optical recording and thermomagnetic printing. TbxFe1-x thin films with 0 ≤ x ≤ 0.37 are deposited on glass substrates using r.f. sputtering. The magnetic remanent domain structures are studied at room temperature using the longitudinal and polar Kerr effect. Samples with 0 ≤ x ≤ 0.23 exhibit magnetic in-plane anisotropy, while samples with 0.26 ≤ x ≤0.37 possess uniaxial anisotropy with easy axis perpendicular to the film plane. The remanent domain structures depend strongly on Tb content. High remanence and high coercivity are found for samples with 0.27 ≤ x ≤ 0.34 which is confirmed by additional vibrating sample magnetometer (VSM) measurements.

This is a preview of subscription content, access via your institution.


  1. 1.

    P. Hansen and H. Heitmann, IEEE Trans. Magn. MAG-25, 4390 (1989).

    Article  Google Scholar 

  2. 2.

    N. Imamura, S. Tanaka, F. Tanaka and Y. Nagao, IEEE Trans. Magn. MAG>-21, 1607 (1985)

    Article  Google Scholar 

  3. 3.

    M. Komori, T. Numata, K. Tsutsumi, S. Inokuchi and Y. Sakurai, IEEE Trans. Magn MAG-20, (1984).

    Google Scholar 

  4. 4.

    J. Higashi, T. Numata, S. Inokuchi and Y. Sakuray, Japan J. Appl. Phys., 26, 1262 (1987).

    CAS  Article  Google Scholar 

  5. 5.

    J. J. Eltgen and J. G. Maguenet, IEEE Trans. Magn. MAG>-16, 961 (1980).

    Article  Google Scholar 

  6. 6.

    C. J. Lin, J. C. Suit and R. H. Geiss, J. Appl. Phys. 63, 3835 (1988).

    CAS  Article  Google Scholar 

  7. 7.

    Y. Takeno, M Suwabe, T. Sakurai and K. Goto, Japan J. Appl. Phys. 25, L 657, (1986).

    CAS  Article  Google Scholar 

  8. 8.

    V. Florescu, Zaki AL-Tamimi, M. D. Serbanescu, R. Manaila and W. A. Grant, IEEE Trans. Magn. MAG-24, 1734 (1988).

    Article  Google Scholar 

  9. 9.

    V. Florescu, M. D. Serbanescu, R. Manaila, W. A. Grant, J. Magn. Mag. Mat., 92, 137(1990).

    CAS  Article  Google Scholar 

  10. 10.

    F. Schmidt, W. Rave and A. Hubert, IEEE Trans. Magn. MAG-21, 1596 (1985).

    CAS  Article  Google Scholar 

  11. 11.

    B. D. Cullity. Introduction to Magnetic Materials (Addison - Wesley Publishing Comp. Inc., 1972) p. 436.

    Google Scholar 

  12. 12.

    P. Hansen, C. Clausen, G. Much, M. Rosenkranz and K. Witter, J. Appl. Phys. 66, 756 (1989).

    CAS  Article  Google Scholar 

  13. 13.

    P. Hansen, J. Appl. Phys. 63, 2364 (1988).

    CAS  Article  Google Scholar 

Download references


We thank Prof. A. Hubert for using the magnetic domain observation equipment and Mr. M. Haidl for his assistance in VSM measurements. This work was supported by the National Science Foundation, the Welch Foundation, the Texas Higher Education Coordinating Board and the Alexander von Humboldt Foundation.

Author information



Corresponding author

Correspondence to V. Florescu.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Florescu, V., Rau, C. & Zheng, N.J. Strong Influence of Tb Concentration on Domain Structure and Kerr Effect of TbxFe 1-x Thin Films. MRS Online Proceedings Library 313, 327–332 (1993).

Download citation