Dresden 2003 – wissenschaftliches Programm

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MA: Magnetismus

MA 14: Poster: Schichten(1-31), Spinabh.Trsp.(32-47), Exch.Bias(48-54), Spindyn.(55-64), Mikromag.(65-76), Partikel(77-88), Oflmag.(89-92), Spinelektr.(93-98), Elektr.Theo.(99-103), Mikromag+PhasÜ+Aniso.(104-122), MagnMat.(123-134), Messm+Mol-Mag.(135-139), Kondo(140-151)

MA 14.14: Poster

Dienstag, 25. März 2003, 15:15–19:15, Zelt

Preparation and nano-structuring of Sr₂FeMoO₆ thin films — •Nicole Auth¹, Diana Sanchez², and Gerhard Jakob¹ — ¹Johannes Gutenberg Universität, Mainz — ²Instituto de Ciencia de Materiales de Madrid, CSIC

Since the first report of room temperature magneto-resistance in polycrystalline Sr₂MoFeO₆ [ 1 ] a lot of effort has been put into the preparation of thin films of this compound. Yet up to know it has not been possible to outdo the performance of perovskite manganites which, due to their T_C below room temperature, are considered less suitable for application. Nevertheless the potential of this material has been manifested by a large number of publications mainly addressing bulk material properties.

Lately, the use of a buffer layer to improve the crystallinity as well as the magnetic properties of Sr₂MoFeO₆ thin films has been proposed [ 2 ]. Apart from studying these systems, we take a close look on thin film properties compared to bulk material revealing inherent differences in parameter dependencies. By nano-structuring thin film samples we also address the question of Sr₂MoFeO₆ prospects in nanoscale devices.

[ 1 ] K.-I. Kobayashi et. al., Nature (London) 395, 677 (1998).

[ 2 ] H. Asano et. al., Jpn. J. Appl. Phys. 41, L 1081 (2002).