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Experimental comparison of exchange bias measurement methodologies
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1860/1684
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| Title: | Experimental comparison of exchange bias measurement methodologies |
| Authors: | Hovorka, Ondrej
Berger, Andreas
Friedman, Gary |
| Issue Date: | May-2007 |
| Publisher: | American Institute of Physics |
| Citation: | Journal of Applied Physics, 101: pp. 09E515-1 - 09E515-3. |
| Abstract: | Measurements performed on all-ferromagnetic bilayer systems and supported by model calculation
results are used to compare different exchange bias characterization methods. We demonstrate that
the accuracy of the conventional two-point technique based on measuring the sum of the coercive
fields depends on the symmetry properties of hysteresis loops. On the other hand, the recently
proposed center of mass method yields results independent of the hysteresis loop type and coincides
with the two-point measurement only if the loops are symmetric. Our experimental and simulation
results clearly demonstrate a strong correlation between loop asymmetry and the difference between
these methods. |
| URI: | http://dx.doi.org/10.1063/1.2711713
http://hdl.handle.net/1860/1684 |
| Appears in Collections: | Faculty Research and Publications (ECE)
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