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Kinetics of L10 Long-Range Ordering in FePd Thin Film

Published online by Cambridge University Press:  26 February 2011

Chaisak Issro
Affiliation:
ichaisak@yahoo.comUniversity of ViennaFaculty of PhysicsStrudlhofgasse 4Vienna A-1090Austria
Véronique Pierron-Bohnes
Affiliation:
Veronique.Pierron-Bohnes@ipcms.u-strasbg.fr, CNRS-ULP, IPCMS, 23, rue du Loess, Strasbourg, F-67034, France
Wolfgang Pueschl
Affiliation:
Wolfgang.Pueschl@univi.ac.at, University of Vienna, Faculty of Physics, Strudlhofgasse 4, Vienna, A-1090, Austria
Rafal Kozubski
Affiliation:
rafal.kozubski@uj.edu.pl, Jagellonian University, M. Smoluchovski Institute of Physics, Reymonta 4, Cracow, 30-059, Poland
Wolfgang Pfeiler
Affiliation:
wolfgang.pfeiler@univie.ac.at, University of Vienna, Faculty of Physics, Strudlhofgasse 4, Vienna, A-1090, Austria
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Abstract

Due to their high magnetic anisotropy, L10-ordered intermetallics when ferromagnetic bear a potential as high density magnetic recording materials. In their case the c-axis of the tetragonally distorted structure is the easy axis of magnetization. We present preliminary results on the details of ordering kinetics on FePd films (thickness 100 nm) epitaxially co-deposited on MgO substrates. From the observation of so called ‘order-order relaxations’ during isothermal small-step anneals monitored by residual electrical resistivity (REST) measurement we determine an ordering activation energy of about 2.4 eV, which is somewhat below the value of 2.7 eV obtained in a previous investigation on bulk material.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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References

REFERENCES

1. Lang, H., Pfeiler, W., nd Mohri, T., Intermetallics 7, 1373 (1999).CrossRefGoogle Scholar
2. Lang, H., Uzawa, H., Mohri, T. and Pfeiler, W., Intermetallics 9, 9 (2001).CrossRefGoogle Scholar
3. Lang, H., Rohrhofer, K., Rosenkranz, P., Kozubski, R., Püschl, W., and Pfeiler, W., Intermetallics 10, 283 (2002).CrossRefGoogle Scholar
4. Issro, Ch., Püschl, W., Pfeiler, W., Rogl, P., Soffa, W., Schmerber, G., Kozubski, R., and Pierron-Bohnes, V., Scripta Mater. 53, 447 (2005).CrossRefGoogle Scholar
5. Issro, Ch., Püschl, W., Pfeiler, W., Sepiol, B., Rogl, P.F., Soffa, W.A., Acosta, Manuel, and Pierron-Bohnes, V., Proc. Mat. Res. Soc. Symp. Proc. 842, S3.10.1 (2005).Google Scholar
6. Kozubski, R., Kozlowski, M., Zapala, K., Pierron-Bohnes, V., Pfeiler, W., Rennhofer, M., Sepiol, B., and Vogl, G., J. Phase Equ. Diffusion 26, 482 (2005).CrossRefGoogle Scholar
7. Kulovits, A., Püschl, W., Soffa, W.A., and Pfeiler, W., Mat. Res. Soc. Symp. Proc. 753, BB5.37.1 (2003).Google Scholar

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