Electron spin resonance study of a temperature sensitive magnetic fluid

作者: Kinnari Parekh , R. V. Upadhyay , R. V. Mehta , D. Srinivas

DOI: 10.1063/1.1287222

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摘要: Electron spin resonance spectra of a temperature sensitive magnetic fluid involving polydispersed Mn0.5Zn0.5Fe2O4 ferrite particles are scanned from 200 to 400 K. For such system, the deconvolutions suggest coexistence two different modes: (i) broad line due ferrimagnetic and (ii) sharp at g=2 intrinsic superparamagnetic phase. From intensity variation g=2, it is found that contribution phase increases with temperature. A study peak-to-peak linewidth indicates weakening moment responsible for observed reduction in linewidth.

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