Publications in Scientific Journals:
R. Dittrich, T. Schrefl, M. Kirschner, D. Süss, G. Hrkac, F. Dorfbauer, O. Ertl, J. Fidler:
"Thermally induced vortex nucleation in permalloy elements";
IEEE Transactions on Magnetics,
Vol. 41
(2005),
No. 10;
3592
- 3594.
English abstract:
Vortex nucleation and vortex motion are the main mechanisms of magnetization reversal in micrometer-sized magnetic elements. The critical field required to nucleate a vortex depends on the temperature. We propose a method that combines standard Landau-Lifshitz-Gilbert (LLG) micromagnetics and an elastic band method to simulate nonzero temperature hysteresis curves of magnetic thin film elements. Whereas the LLG simulations gives the equilibriums states before and after a vortex enters the element, the elastic band method gives the height of the energy barrier between these two states. Thus temperature-dependent nucleation fields can be computed without the need to perform stochastic LLG simulations.
Online library catalogue of the TU Vienna:
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05938195
Electronic version of the publication:
http://ieeexplore.ieee.org/search/srchabstract.jsp?arnumber=1519380&isnumber=32516&punumber=20&k2dockey=1519380@ieeejrns&query=%28+schrefl%3Cin%3Eau+%29&pos=5
Created from the Publication Database of the Vienna University of Technology.