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Journal Article

Multiferroic TbMnO3 nanoparticles

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Urban,  Joachim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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SSC138_full.pdf
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Citation

Kharrazi, S., Kundaliya, D. C., Gosavi, S., Kulkarni, S., Venkatesan, T., Ogale, S., et al. (2006). Multiferroic TbMnO3 nanoparticles. Solid State Communications, 138, 395-398. Retrieved from http://dx.doi.org/10.1016/j.ssc.2006.03.034.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0661-C
Abstract
We report on the synthesis of TbMnO3 nanoparticles by chemical co-precipitation route and their structural, chemical bonding, magnetic and dielectric properties. It is shown that the interesting multiferroic properties of this system as reflected by the concurrent occurrence of magnetic and dielectric transitions are retained in the nanoparticles (size ~40 nm). However, the nanoparticle constitution and properties are seen to depend significantly on the calcination temperature. While the nanoparticles obtained by calcination at 800 °C correspond very well with the reported properties of single phase TbMnO3 (all the key magnetic and dielectric features near 7, 27 and 41 K, albeit with reduced dielectric constant) the nanoparticles obtained by calcination at 900 °C develop a Tb deficient skin which softens the transitions, reducing the dielectric constant further.