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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Reversible and Irreversible Exchange-Spring Process of the Antiferromagnetically Exchange Coupled Bilayer System
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 1127-1130)
Author(s): Guang-fu Zhang, School of Physics Science and Technology, Central South University, Changsha, China
Guang-hua Guo, School of Physics Science and Technology, Central South University, Changsha, China
Xi-guang Wang, School of Physics Science and Technology, Central South University, Changsha, China
Abstract: The demagnetization processes of antiferromagnetically exchange-coupled soft/hard bilayer structures have been studied based on a one-dimensional atomic chain model. It is found that, when the magnetic anisotropy of soft layer is taken into account, the change of the interfacial exchange coupling strength leads the transition of the exchange-spring process from reversible to irreversible for the thin soft layer structures. There is a critical interfacial exchange constant Ac sh, above which the exchange-spring process is reversible. When Ash
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