Structure and charge ordering behavior of the colossal magnetoresistive manganite Nd0.5Sr0.5MnO3
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- Z. P. Luo
- Texas A&M University Microscopy and Imaging Center, , College Station, Texas 77843-2257, USA
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- D. J. Miller
- Argonne National Laboratory Materials Science Division, , Argonne, Illinois 60439, USA
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- J. F. Mitchell
- Argonne National Laboratory Materials Science Division, , Argonne, Illinois 60439, USA
書誌事項
- 公開日
- 2009-03-06
- DOI
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- 10.1063/1.3072472
- 公開者
- AIP Publishing
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説明
<jats:p>The structure and charge ordering (CO) behavior of the three-dimensional colossal magnetoresistive manganite Nd0.5Sr0.5MnO3 have been studied by transmission electron microscopy. The electron diffraction analysis suggested its room temperature structure as orthorhombic, with a Pnma space group. By controlling the experimental temperature setting either above or below the CO transition temperature, it was observed that the CO grew through the propagation of the CO front. The twin boundaries were the barriers of the CO front movement. In heavily ion irradiated samples, it was observed that the CO front was pinned by the intracrystalline defects, forming a zigzag shape interface. Moreover, the electron beam was observed to influence the CO.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 105 (7), 07D528-, 2009-03-06
AIP Publishing
