Pressure-induced crystallite breaking in La0.7Sr0.3Mn0.9Fe0.1O3 nanosolids
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In the compacting process of the La0.7Sr0.3Mn0.9Fe0.1O3 nanosolids under the pressure range of 0.0–4.5 GPa, the apparent pressure-induced crystallite breaking phenomenon in these nanosolids was observed. With increasing pressure up to 4.5 GPa, the average grain size decreases by 46 % while the magnetization of nanosolids decrease by 40 % and their coercive increases by 35%. This kind of breaking has a close relation to the existence of oxygen deficiency in La0.7Sr0.3Mn0.9Fe0.1O3 nanoparticles. A simple and convenient method for preparing the bulk nanosolids with a large number of clean interfaces has been suggested.
Keywordsnanosolid pressure-induced breaking high pressure
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