Magnetization enhancement in nanocrystalline Co0.4Zn0.6Fe2O4by 200 MeV Ag15+ion irradiation
| Autor: | S. Kumar, M. S. Dhawan, Ravi Kumar, R.K. Singhal, Arvind Samariya, S. N. Dolia, Arun S. Prasad |
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| Rok vydání: | 2011 |
| Předmět: |
Nuclear and High Energy Physics
Radiation Materials science Spinel Analytical chemistry engineering.material Coercivity equipment and supplies Condensed Matter Physics Nanocrystalline material Ion Magnetization Nuclear magnetic resonance Remanence engineering General Materials Science Irradiation human activities Superparamagnetism |
| Zdroj: | Radiation Effects and Defects in Solids. 166:558-563 |
| ISSN: | 1029-4953 1042-0150 |
| DOI: | 10.1080/10420150.2011.553232 |
| Popis: | The effects of 200 MeV Ag15+ ion irradiation on the magnetic behavior of nano particles of Co0.4Zn0.6Fe2O4 have been studied using the field, temperature and time-dependent magnetization measurements. Rietveld profile refinement of the XRD patterns confirms the formation of a cubic spinel structure of the specimens retaining the spinel structure upon irradiation. The Ag15+ ion irradiation of the sample causes an appreciable enhancement in the saturation magnetization, coercivity, and remanent magnetization. These observations can be attributed to a slight increase in the particle size due to the heat evolved during the irradiation, cation redistribution, and irradiation-induced modifications on the surface states of the nanoparticles. |
| Databáze: | OpenAIRE |
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