Perpendicular magnetic anisotropy in Pd/Co thin film layered structures

Carcia, P. F.; Meinhaldt, A. D.; Suna, A.
July 1985
Applied Physics Letters;7/15/1985, Vol. 47 Issue 2, p178
Academic Journal
This letter presents the results of magnetic studies of thin film, periodic, Pd/Co layered structures with ultrathin cobalt (4-13 Å). We show that films with Co thicknesses less than 8 Å are easy to magnetize along a direction normal to the film surface. The best films have a saturation magnetization of about 500 emu/cm³ and a coercivity of 550 Oe, and thus they are candidates for a vertical magnetic recording medium. We attribute the perpendicular magnetic easy axis in these films to surface anisotropy at Pd/Co interfaces and strain in thin Co layers.


Related Articles

  • Magnetization of thin films with in-plane uniaxial anisotropy studied by microwave absorption. Rivoire, M.; Suran, G. // Journal of Applied Physics;8/1/1995, Vol. 78 Issue 3, p1899 

    Examines the magnetization process along the hard axis and the value and the dispersion of thin films with inplane uniaxial anisotropy. Derivative absorption related magnetization process for the field applied along the easy direction or for intermediate orientations; Numerical computation of...

  • Soft anisotropic high magnetization Cu/FeCo films. Jung, H. S.; Doyle, W. D.; Wittig, J. E.; Al-Sharab, J. F.; Bentley, J. // Applied Physics Letters;9/23/2002, Vol. 81 Issue 13, p2415 

    A remarkable reduction in the coercivity H[sub c] of sputtered Fe[sub 65]Co[sub 35] films from 9.6 to 0.7 kA/m was observed using a Cu underlayer as thin as 2.5 nm. The FeCo without Cu exhibited a wide distribution of anisotropy fields up to > 80 kA/m while the FeCo with Cu showed a well-defined...

  • Spin polarization of gold films via transported (invited). Johnson, Mark // Journal of Applied Physics;5/15/1994, Vol. 75 Issue 10, p6714 

    Presents information on a study that adapted spin injection technique to a thin-film geometry. Introduction to the spin injection effect; Discussion on charge spin coupling; Effect of magnetic anisotropies.

  • Magnetic anisotropies in Fe(110) films on W(110) (abstract). Elmers, H. J.; Gradmann, U. // Journal of Applied Physics;4/15/1991, Vol. 69 Issue 8, p5216 

    Presents an abstract of the study 'Magnetic Anisotropies in Fe(110) Films on W(110),' conducted by H.J. Elmers and U. Gradmann.

  • Effect of anisotropy dispersion on magnetization process in magnetoresistive sensor films. Shiiki, Kazuo; Mitsui, Yu; Hirata, Yukinobu // Journal of Applied Physics;3/1/1996, Vol. 79 Issue 5, p2590 

    Presents information on a study that examined the effect of anisotropy dispersion on the magnetization process in magnetoresistive sensor films using micromagnetic calculation. Analytic methods; Results and discussion; Conclusion.

  • Uniaxial magnetic anisotropy and magnetic switching in La[sub 0.67]Sr[sub 0.33]MnO[sub 3] thin films grown on vicinal SrTiO[sub 3](100). Wang, Zhi-Hong; Cristiani, G.; Habermeier, H.-U. // Applied Physics Letters;5/26/2003, Vol. 82 Issue 21, p3731 

    La[sub 0.67]Sr[sub 0.33]MnO[sub 3] ultrathin films grown on vicinal SrTiO[sub 3](100) surface show an in-plane uniaxial magnetic anisotropy with easy axis along the substrate atomic steps generated by a 10° miscut off the (100) plane. Over a large angular range, the angular dependence of...

  • The magnetic anisotropy and its distribution in CoCrPtTa/CrV thin film recording media. Bottoni, G.; Candolfo, D.; Cecchetti, A. // Journal of Applied Physics;5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p8602 

    CoCrPtTa/CrV thin films for longitudinal media, with high coercivity and small thickness, are studied. Particularly, the magnetic anisotropy is analyzed with determination of the distribution of anisotropy fields and measurement of rotational hysteresis energy losses. The results are correlated...

  • Coercivity of ultrathin films with in-plane magnetization. Hyman, R.A.; Stiles, M.D. // Journal of Applied Physics;4/16/1997, Vol. 81 Issue 8, p3911 

    Examines coercivity of ultrathin films with in-plane magnetization. Reversal nucleates at step edges; Presence of local two-fold anisotropy; Analytic formulas for the coercive field.

  • Interface anisotropy and magnetization reversal in epitaxial Fe(001)/Pd double layers. Demokritov, S.O.; Mathieu, C. // Journal of Applied Physics;4/16/1997, Vol. 81 Issue 8, p4466 

    Investigates interface anisotropy and magnetization reversal in epitaxial Fe(001)/Pd double layers. Measurement of static and dynamic magnetic properties; Auger electron spectroscopy examinations.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics