Dynamic hysteresis of a superparamagnetic nanoparticle

• DOI: 10.1016/j.physb.2003.08.105
• Publication Date: 2003-10-28T16:52:39Z
• Authors: Yu.L. Raikher; V.I. Stepanov; R. Perzynski
• Keywords: 02 engineering and technology; 0210 nano-technology

Dynamic hysteresis in a nanoparticle is considered on the basis of the Brown's kinetic equation. Dependencies of the loop area on the frequency and amplitude of the magnetizing field and on temperature are presented and analyzed.