%0 Journal Article
%T Vortex Pinning due to Dynamic Spin-Vortex Interaction in aSuperconductor/Ferromagnet Multilayer<br>
%A WU Hong-Ye
%A ZOU Tao
%A CHENG Zhao-Hua
%A SUN Young
%A <br>
%J 中国物理快报
%D 2009
%I 
%X We investigate the mutual interaction between superconductivity and ferromagnetism in a Nb/Ni81Fe19 multilayer by ac susceptibility measurements. Compared with a pure superconducting Nb film, the critical current density of the multilayer is apparently enhanced in a low magnetic field region but remains nearly the same in high magnetic fields, which indicates that a continuous ferromagnetic layer with in-plane magnetization can produce strong vortex pinning in a low field region. We interpret this unusual vortex-pinning phenomenon as a consequence of dynamic spin-vortex interaction which induces a spin rotation following vortex movement. In addition, we propose that this dynamic interaction could be used for spin manipulation via a superconductor.
%K 75
%K 75
%K +a
%K 75
%K 70
%K Cn
%K 74
%K 78
%K Fk<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=EF4D3B6D010F732CB37AC9BC27F6EC15&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=CA4FD0336C81A37A&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0