Synthesis and magnetic characterizations of manganite-based composite nanoparticles for biomedical applications

A. K. Pradhan, R. Bah, R. B. Konda, R. Mundle, H. Mustafa, O. Bamiduro, R. R. Rakhimov, Xiaohui Wei, D. J. Sellmyer

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Abstract

We report chemically synthesized highly crystalline lanthanum strontium manganite (LaSrMn O3) and Eu-doped Y2 O3 and their composites. The synthesis yields nanoparticles of size 30-40 nm. Magnetic measurements performed on nanoparticles and composites show magnetic transition at about 370 K with a superparamagnetic behavior at room temperature. The ferromagnetic resonance studies of the nanoparticles show large linewidth due to surface strains. The composite nanoparticles also display luminescent behavior when irradiated with ultraviolet light. The manganites as well their composite with the luminescent nanoparticles may be very useful for biomedical applications.

Original languageEnglish (US)
Article number07F704
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
Publication statusPublished - Apr 21 2008

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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