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.
May 2003
Applied Physics Letters;5/26/2003, Vol. 82 Issue 21, p3731
Academic Journal
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 magnetic switching field is found to obey the 1/cos φ law, indicating that the magnetic reversal is completed by a 180° domain nucleation and sweeping along the easy axis. However, when the applied field is perpendicular to the hard axis (φ = 90°), the magnetization reversal is found to be well described by the StonerWohlfarth model, in which the magnetization coherently rotates from the easy axis to hard axis.


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...

  • Perpendicular magnetic anisotropy in Pd/Co thin film layered structures. Carcia, P. F.; Meinhaldt, A. D.; Suna, A. // Applied Physics Letters;7/15/1985, Vol. 47 Issue 2, p178 

    This letter presents the results of magnetic studies of thin film, periodic, Pd/Co layered structures with ultrathin cobalt (4-13 Ã…). We show that films with Co thicknesses less than 8 Ã… are easy to magnetize along a direction normal to the film surface. The best films have a saturation...

  • 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.

  • 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