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Exchange bias

Theses, Dissertations, and Student Research: Department of Physics and Astronomy

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Exchange Bias Training Effect In Magnetically Coupled Bilayers, Srinivas Polisetty Oct 2009

Exchange Bias Training Effect In Magnetically Coupled Bilayers, Srinivas Polisetty

Theses, Dissertations, and Student Research: Department of Physics and Astronomy

Interfaces in magnetically coupled bilayer heterostructures play a vital role in novel spintronics devices. Particularly, control of the interface spin structure enables the development of progressively down-scalable magnetic read-heads which are of major importance for non volatile magnetic recording media. Exchange bias and its accompanying training effect are fundamental magnetic coupling phenomena taking place at the interfaces of antiferromagnetic/ferromagnetic and hard/soft ferromagnetic bilayers. Here, in my thesis I present the experimental results of exchange bias training in the prototypical antiferromagnetic/ferromagnetic exchange bias system CoO/Co and the corresponding coupling and aging phenomena in the all ferromagnetic hard ...