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Chinese Science Bulletin

, Volume 43, Issue 6, pp 458–461 | Cite as

Pressure-induced crystallite breaking in La0.7Sr0.3Mn0.9Fe0.1O3 nanosolids

  • Fanlei Zheng
  • Yu Sui
  • Dapeng Xu
  • Wenhui Su
Bulletin

Abstract

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.

Keywords

nanosolid pressure-induced breaking high pressure 

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Copyright information

© Science in China Press 1998

Authors and Affiliations

  • Fanlei Zheng
    • 1
    • 2
  • Yu Sui
    • 1
    • 3
  • Dapeng Xu
    • 1
  • Wenhui Su
    • 1
    • 4
    • 5
  1. 1.Department of PhysicsJilin UniversityChangchunChinas
  2. 2.Changchun Institute of PhysicsChinese Academy of SciencesChangchunChina
  3. 3.Institute of Metal ResearchChinese Academy of SciencesShenyangChina
  4. 4.International Center for Materials PhysicsChinese Academy of SceincesShenyangChina
  5. 5.Center for Condensed Matter and Radiation PhysicsCCAST (World Lab.)BeijingChina

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