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Time stability of multi-domain states formed in the magnetization reversal process of GaMnAs film
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2007 (English)In: Solid State Communications, ISSN 0038-1098, E-ISSN 1879-2766, Vol. 143, no 4-5, 232-235 p.Article in journal (Refereed) Published
Abstract [en]

The magnetization reversal process of ferromagnetic GaMnAs epilayers has been systematically investigated using the planar Hall effect (PHE) and magnetoresistance (MR). We have observed non-abrupt transitions between two orientations of magnetization in PHE and striking resistance dips at the second switching in MR. The observed behaviors indicate that multi-domain structures are formed as magnetization undergoes a reorientation. An asymmetric PHE hysteresis loop was obtained when the range of the field scan was restricted to fields below the final magnetization transition. This indicates that the domain structure formed at the moment of magnetization reorientation remains stable even after the magnetic field is removed. The time stability of the multi-domain structure was further tested by monitoring the change in the planar Hall resistance value for more than 24 h.

Place, publisher, year, edition, pages
2007. Vol. 143, no 4-5, 232-235 p.
Keyword [en]
A. Magnetically ordered materials, A. Semiconductors, B. Epitaxy, D. Electronic transport, Ferromagnetic materials, Hall effect, Hysteresis loops, Magnetization reversal, Magnetoresistance, Semiconducting gallium compounds, Ferromagnetic GaMnAs epilayers, Magnetization transition, Resistance dips, Thin films
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-105592DOI: 10.1016/j.ssc.2007.05.022ISI: 000248430700009OAI: diva2:573523

References: Wolf, S.A., Awschalom, D.D., Buhrman, R.A., Daughton, J.M., von Molnár, S., Roukes, M.L., Chtchelkanova, A.Y., Treger, D.M., (2001) Science, 294, p. 1488; Ohno, H., Chiba, D., Matsukura, F., Omlya, T., Abe, E., Dietl, T., Ohno, Y., Ohtanl, K., (2000) Nature (London), 408, p. 944; Koshihara, S., Oiwa, A., Hirasawa, M., Katsumoto, S., Iye, Y., Urano, C., Takagi, H., Munekata, H., (1997) Phys. Rev. Lett., 78, p. 4617; Lee, S., Chung, S.J., Choi, I.S., Yuldashev, Sh.U., Im, H., Kang, T.W., Lim, W.L., Furdyna, J.K., (2003) J. Appl. Phys., 93, p. 8307; Wojtowicz, T., Lim, W.L., Liu, X., Dobrowolska, M., Furdyna, J.K., Yu, K.M., Walukiewicz, W., Meyer, J.R., (2003) Appl. Phys. Lett., 83, p. 4220; Wang, K.Y., Campion, R.P., Edmonds, K.W., Sawicki, M., Dietl, T., Foxon, C.T., Gallagher, B.L., (2004), cond-mat/0411475Shin, D.Y., Chung, S.J., Lee, S., Liu, X., Furdyna, J.K., (2007) Phys. Rev. Lett., 98, p. 047201; Lee, S., Shin, D.Y., Chung, S.J., Liu, X., Furdyna, J.K., (2007) Appl. Phys. Lett., 90, p. 152113; Tang, H.X., (2003) Phys. Rev. Lett., 90, p. 107201; Holleitner, A.W., (2004) Appl. Phys. Lett., 85, p. 5622; Wang, K.Y., (2005) Phys. Rev. B, 72, p. 085201; Tang, H.X., (2004) Nature, 431, p. 52; Welp, U., (2003) Phys. Rev. Lett., 90, p. 167206; Titova, L.V., (2005) Phys. Rev. B, 72, p. 165205; Tang, H., Roukes, M.L., (2004) Phys. Rev. B, 70, p. 205213; Okamoto, K., (1983) J. Magn. Magn. Mater., 35, p. 353

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Available from: 2012-11-30 Created: 2012-11-22 Last updated: 2013-07-19Bibliographically approved

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