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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 ,
Véronique Pierron-Bohnes ,
Wolfgang Pueschl ,
Rafal Kozubski  and
Wolfgang Pfeiler
Chaisak Issro
Affiliation:
[email protected] of ViennaFaculty of PhysicsStrudlhofgasse 4Vienna A-1090Austria
Véronique Pierron-Bohnes
Affiliation:
[email protected], CNRS-ULP, IPCMS, 23, rue du Loess, Strasbourg, F-67034, France
Wolfgang Pueschl
Affiliation:
[email protected], University of Vienna, Faculty of Physics, Strudlhofgasse 4, Vienna, A-1090, Austria
Rafal Kozubski
Affiliation:
[email protected], Jagellonian University, M. Smoluchovski Institute of Physics, Reymonta 4, Cracow, 30-059, Poland
Wolfgang Pfeiler
Affiliation:
[email protected], 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.

Keywords

thin filmelectrical propertieskinetics
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 980: Symposium II – Advanced Intermetallic-Based Alloys , 2006 , 0980-II03-07
Copyright
Copyright © Materials Research Society 2007

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References

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