%0 Journal Article
%T AMANY-BODY UNIVERSAL APPROACH TO THERMALLY ACTIVATED MAGNETOELASTIC RELAXATION IN FERROMAGNETIC ALLOYS<br>热激活磁弹性弛豫的多体普适方法研究
%A WANG YANG-PU
%A JIN QI-SMU
%A <br>王养璞
%A 金其淑
%J 物理学报
%D 1988
%I 
%X The rmally activated magnetoelastic relaxation in disordered ferromagnetic alloys is studied by using a new relaxation mechanism based on the concept of many-body interaction leading to an infrared divergence response. It nas been found that except the thermally assisted transitions of directional ordered atoms, the directional ordering, which causes a relaxation behavior of magnetic domain walls, includes two different classes of configurational tunnelling caused by many-body interactions. Based on this mechanism, a new relaxation law of magnetization and a new formula of magnetic disaccommodation were derived. Using Boltzmann superposition principle, an universal formula of internal friction was also derived, which was verified by experimental date.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=EB74F4EBA4C37D676DE21040C8D1BCA0&yid=0702FE8EC3581E51&vid=42425781F0B1C26E&iid=9CF7A0430CBB2DFD&sid=C429879D42743822&eid=B754280783395EEA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0