DocumentCode :
2944731
Title :
Incoherent Reversal in Metal Particle Media
Author :
Chadwick, S.J. ; Grady, K.O.
Author_Institution :
York Univ., York
fYear :
2006
fDate :
8-12 May 2006
Firstpage :
640
Lastpage :
640
Abstract :
In this paper reports, the magnetisation reversal in ultra-fine elongated metal particles is incoherent. The six metal particle tapes with TEM imaging and magnetic measurement is studied. The activation volume of reversal (Vact) and the physical particle volume (Vphys ) have been determined to establish how the size and geometry of the particles affects the magnetisation reversal. Vact is defined as the smallest volume that reverses coherently. The particles have uniaxial shape anisotropy, which gives them a high coercivity.
Keywords :
coercive force; magnetic anisotropy; magnetisation reversal; particle size; transmission electron microscopy; TEM imaging; activation volume; high coercivity; incoherent magnetisation reversal; magnetic measurement; metal particle tapes; particle size; physical particle volume; ultra-fine elongated metal particles; uniaxial shape anisotropy; Coercive force; Force measurement; Hafnium; Jacobian matrices; Magnetic field measurement; Magnetization reversal; Physics; Pigments; Switches; Time measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
Type :
conf
DOI :
10.1109/INTMAG.2006.376364
Filename :
4262073
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2944731
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