Magnetization reversal in long chains of submicrometric Co dots
Martín, J. I. (University of California, San Diego. Department of Physics)
Nogués, Josep (University of California-San Diego. Physics Department)
Schuller, Ivan K. (University of California, San Diego. Department of Physics)
Van Bael, M. J. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme)
Temst, Kristiaan (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme)
Van Haesendonck, C. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme)
Moshchalkov, V. V. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme)
Bruynseraede, Y. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme)
American Physical Society

Data:	1998
Resum:	Long chains of 400 nm diam Co dots prepared by combined electron-beam lithography exhibit interesting magnetotransport properties. The magnetoresistance of the chains of dots is markedly different from single Co films, indicating a strongly modified magnetization reversal process. Magnetic force microscopy(MFM) shows that, after magnetic saturation, in the remanent state the single-domain dots are all oriented with their magnetic moment along the chain. A comparison of the magnetoresistance and the MFM reveals that the magnetization reversal occurs by coherent rotation of the magnetic moment in the single-domain dots forming the chain.
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Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Magnetic force microscopy ; Magnetization reversals ; Magnetic moments ; Magnetoresistance ; Nanodots ; Magnetic films ; Saturation moments
Publicat a:	Applied physics letters, Vol. 72, Issue 2 (January 1998) , p. 255-257, ISSN 1077-3118

DOI: 10.1063/1.120702

4 p, 491.6 KB

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