Sarkar, Tapati ; Mukhopadhyay, P. K. ; Raychaudhuri, A. K. ; Banerjee, Sangam (2007) Structural, magnetic, and transport properties of nanoparticles of the manganite Pr0.5Ca0.5MnO3 Journal of Applied Physics, 101 (12). 124307_1-124307_7. ISSN 0021-8979
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Official URL: http://jap.aip.org/resource/1/japiau/v101/i12/p124...
Related URL: http://dx.doi.org/10.1063/1.2749409
Abstract
In this paper we report the structural, magnetic, and transport properties of nanoparticles of Pr0.5Ca0.5MnO3(PCMO). On comparing our results with that of bulk PCMO, we find that there is a likely destabilization of charge ordering in nanoparticles of PCMO. The investigation has been done with particle sizes as small as 15 nm synthesized by polyol route. The size reduction (by keeping the chemical composition unchanged) reduces the orthorhombic c axis preferentially and thus reduces the orthorhombic distortion. The size reduction to 15 nm enhances the ferromagnetic moment at low temperatures and strongly suppresses the activated charge transport which is seen in the bulk samples of charge ordered PCMO.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Praseodymium Compounds; Calcium Compounds; Nanoparticles; Magnetic Particles; Ferromagnetic Materials; Particle Size; Magnetic Moments; Colossal Magnetoresistance |
| ID Code: | 42636 |
| Deposited On: | 04 Jun 2011 12:58 |
| Last Modified: | 04 Jun 2011 12:58 |
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